Smooth Ramp P Side View Top View A small block of mass m starts from rest at the top of a frictionless ramp, which is at a height h above a horizontal tabletop, which also create angle 0, as shown in the side view above. The block slides down the smooth ramp and reaches point P with speed vo. After the block reaches point P at the bottom of the ramp, it slides on the tabletop guided by a circular vertical wall with radius R, as shown in the top view. The tabletop has negligible friction, and the coefficient of kinetic friction between the block and the circular wall is u. (a) Derive an expression for the acceleration of the block while its sliding down the ramp. Express your answer in terms of vo, m, h, and 0.
Q: V2
A: Equating two power equations gives
Q: Problem 7.38 Assume that the maximum horizontal distance you can throw a basebal (m-0.145 kg) at an…
A: Given data: The mass of ball is m=0.145 kg. The angle above horizontal is α0=45°. The range of the…
Q: 4. A 0.40 kg small box starts from rest and slides down a frictionless curved surface ( % of a…
A: According to work energy theorem Work done = change in kinetic energy
Q: roller coaster FAHAD for a-c ignore friction a) at which point is the Potential energy the greatest…
A:
Q: Question 4: Energy Analysis + N2L+ Kinematics: Sliding off a dome A person of mass m initially sits…
A: Step 1: Step 2: Step 3: Step 4:
Q: Using the principles of energy and conservation of energy, determine how the velocity of an object…
A:
Q: Circular Motion A 1 Kg bead is confined to move on a vertical circle of radius 2 meters. There is no…
A:
Q: Choose which statement describes a process in which an external force does negative work on the…
A:
Q: A ball with a mass of 10.0 kg is at rest at the top of a frictionless inclined plane of length 8.00…
A: Write the given values with the suitable variables. m=10 kgL=8 mθ=30°μk=0.4 Here, m, L, θ, and μk…
Q: Flying Puck Consider a small frictionless puck perched at the top of a fixed 2. sphere of radius R.…
A: Given:Radius of the sphere = R
Q: m/s. 1) Draw a sketch of the situation, labeling all of the phy
A:
Q: Two researchers, Ann and Malcolm, want to understand the biomechanical mechanism of the froghopper…
A:
Q: Energy of a Roller Coaster Car 500 450 400 350 Which statement is best supported by the graph? E 300…
A: A graph of the energy level has been given To find = which energy is conserved
Q: A 0.040 kg ball is thrown from the top of a 30 m tall building (point A) at an unknown angle above…
A:
Q: If the objects are positioned on the steps as shown, what is gravitational potential energy…
A:
Q: A roller coaster can be represented by a block mass of 45kg the car is released from a height of…
A: There is no frictional force acting on the car. Gravity acts on it and it is a conservative force.…
Q: A 350 kg roller coaster starts from rest at point A and slides down the frictionless loop-the-loop…
A: Now
Q: Circular Motion A1 Kg bead is confined to move on a vertical circle of radius 2 meters. There is no…
A: The magnitude of average velocity (m/s) from A to B. Given, Radius of the circleR=2 mTime takent to…
Q: A small bead with a mass of 5 grams slides without friction on a thin, rigid wire as shown in the…
A: Recall By conservation of energy at height h and at 2R For finding speed at A. Applying…
Q: PRINTER VERSION 1 BACK N Chapter 08, Problem 018 The figure shows a thin rod, of length L =2.00 m…
A:
Q: Circular Motion A 1 Kg bead is confined to move on a vertical circle of radius 2 meters. There is no…
A:
Q: MA 2a) Determine the rotational inertia I of the pulley. units? C answer= Check your answer Show…
A: Given that: The mass is: mA=6.5 kgmB=20 kgMP=6.3 kg The radius of the disk is r=0.7 m The height of…
Q: In a given displacement of a particle, its kinetic energy increases by 25 J while its potential…
A:
Q: A 1.85 m tall person lifts a 2.00 kg book off the ground so it is 2.25 m above the ground. Part A…
A:
Q: IP Suppose the pendulum bob in the figure(Figure 1) has a mass of 0.43 kgkg and is moving to the…
A: Mass of pendulum bob,Speed at point B,from the figure,Air resistance is negligible.
Q: (a) Find the work done by the force on the particle. (b) What is the angle between F and Ař?
A: Given, Force, F→=(5i-4j) N Displacement, ∆r→=(5i+j)m
Q: A 42 kg seal slides from rest down a ramp into the pool below. The top of the ramp is 1.75 m than…
A:
Q: A 75.0 kg block of ice slides from rest down an icy hill from point A to point B, as illustrated in…
A:
Q: Circular Motion A 1 Kg bead is confined to move on a vertical circle of radius 2 meters. There is no…
A:
Q: A roller coaster car may be approximated by a block of mass mmm. The car, which starts from rest, is…
A: Given that:Initial height of the block=hmass of block=mInitial speed of block,u=0 (as starts from…
Q: A bicyclist is stopped at the entrance to a valley, as sketched below: B. Where would the bicyclist…
A: Solution:
Q: Physics Problem A 300 N net force was applied 30° North of East on a crate with 50.0 kg mass, which…
A:
Q: A roller-coaster car shown in the figure below is pulled up to point 1 where it is released from…
A:
Q: The graph below represents the relationship between the force exerted on an elevator and the…
A: Given data: Graph between the force on elevator and distance lifted
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
- Circular Motion A 1 Kg bead is confined to move on a vertical circle of radius 2 meters. There is no friction between the bead and the circular track. The bead has a speed of 10 m/s when at the top of the circle at point "A", and the total mechanical energy of the bead is assumed to be constant as it moves around the circle. Assume it takes the bead 0.62 seconds to go counter-clockwise from point "A" to point "B" each cycle. 10 m/s 2 m Previous A 30° Note: vector directions should be given as the "standard" angle with 0 ≤0 < 360 degrees Calculate the direction of the velocity of the bead at point "B". Enter the standard angle in degrees.Problem 5 A child applies a force F? parallel to the x -axis to a 10.0-kg sled moving on the frozen surface of a small pond. As the child controls the speed of the sled, the x-component of the force she applies varies with the x-coordinate of the sled as shown in the picture (a) Calculate the work done by the force F? when the sled moves from x=0 to x=8.0m. (b) from x = 8.0 m to x = 12.0 m; (c) from x = 0 to 12.0 m. Figure 1 Fx (N) 10 5 of 1 0 4 8 < 12 x (m)A 74 kg skier has a speed of 9.2 m/s at point A. She then encounters a 1.75 m deep dip in the snow's surface that has a circular cross section with a radius of curvature of 12 m. Note: You may ignore friction in this problem. a.) How large is the normal force exerted by the snow on the skier at point B? N b.) How much work is done by the normal force on the skier from point A to point B? J 1.75 m r = 12 m
- A child starts at rest and slides down a frictionless slide as in picture. The bottom of the track is a height h above the ground. The child then leaves the track horizontally, stiking the ground at a distance d as shown. a) Using conservation of energy, find the speed the child at the end of the slide b) Using your answer to part(a) and the equation related to a projectile, determine the initial height H of the child above the ground in terms of h and dView Policies Current Attempt in Progress A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting force does work in raising the helicopter. An 800-kg helicopter rises from rest to a speed of 9.5 m/s in a time of 5.0 s. During this time it climbs to a height of 9.5 m. What is the average power generated by the lifting force? P = i eTextbook and Media GO Tutorial Save for Later Attempts: 0 of 5 used Submit AnswerCircular Motion A 1 Kg bead is confined to move on a vertical circle of radius 2 meters. There is no friction between the bead and the circular track. The bead has a speed of 10 m/s when at the top of the circle at point "A", and the total mechanical energy of the bead is assumed to be constant as it moves around the circle. Assume it takes the bead 0.62 seconds to go counter-clockwise from point "A" to point "B" each cycle. 10 m/s 2 m 30° Note: vector directions should be given as the "standard" angle with 0≤0 < 360 degrees Calculate the average speed (m/s) from "A" to "B" (based on the 0.62 seconds mentioned in the description).
- Astronomy helpA 500 kg cart rests atop a hill 30.0 m high on a roller coaster. Its gravitational potential energy is measured relative to the bottom of the hill. The cart then rolls down the hill. Which of these best describes what is happening in this situation? a. the total mechanical energy of the cart is decreasing, the kinetic energy of the cart is increasing, and the gravitational potential energy of the cart is increasing b. the total mechanical energy of the cart is increasing, the kinetic energy of the cart is increasing, and the gravitational potential energy of the cart is increasing c. the total mechanical energy of the cart is increasing, the kinetic energy of the cart is increasing, and the gravitational potential energy of the cart is decreasing d. the total mechanical energy of the cart is increasing, the kinetic energy of the cart is decreasing, and the gravitational potential energy of the cart is increasing e. the total mechanical energy of…Consider four "special positions" of the marble: (A) - the marble begins to fall (B) the cord begins to stretch (C) - the equilibrium position (D) the marble comes to a momentary stop as shown below. Assume that the zero level of the gravitational potential energy of the system "marble-Earth" is at the level of the table. 31 The marble reaches its maximum speed: at position B A Obetween positions A and B . Б at position C X C D Obetween positions B and C Oat position D Obetween positions C and D
- 5 of 18 A 4500 kg spacecraft is in a circular orbit 1500 km above the I Review I Constants surface of Mars (mM = 6.42 x 1023 kg, RM = 3.39 x 10 m). Part A How much work must the spacecraft engines perform to move the spacecraft to a circular orbit that is 4500 km above the surface? Express your answer with the appropriate units. HẢ ? w - 1.49 • 1010 J %3D Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Provide Feedback Next > MacBook Air esc 80 DII DD F1 F2 F3 F4 FS F6 F7 FB F9 F10 F11 F12 @ # $ & * 1 2 3 4 7 9. delete Q W E R T Y 一 PA skier starts from rest at the top of a frictionless incline of height 35.0 m, as in Figure 13. At the bottom of the incline, the skier encounters a horizontal surface where the coefficient of kinetic friction between the skis and snow is 0.150. To determine the speed of the skier at the foot of the hill starting from the top of the hill, answer the following Question 43 The initial kinetic energy of the system is zero True False Question 44 The initial gravitational potential energy of the system is zero True False Question 45 Energy lost to friction is zero. True False Question 46 The final kinetic energy of the system is NOT zero True False Question 47 The final gravitational potential energy of the system is NOT zero True False Question 48 Determine the speed of the skier at the foot of the hill. To determine how far does the skier…PRINTER VERSION 1 BACK NEXT A 3.0 kg lunchbox is sent sliding over a frictionless surface, in the positive direction of an x axis along the surface. Beginning at time t = 0, a steady wind pushes on the lunchbox in the negative direction of the x axis. The figure shows the position x of the lunchbox as a function of time t as the wind pushes on the lunchbox. From the graph, estimate the kinetic energy of the lunchbox at (a) t = 1.0 s and (b) t = 5.0 s. (c) How much work does the force from the wind do on the lunchbox from t = 1.0 s to t = 5.0 s? 2 3 4. 7 8. t (s) (a) Number Units (b) Number Units (c) Number Units Click if voL would lika to Show Work for this question- 9:10 PM ENG o search 4/4/2021 SUS pause break hon end Pgup Inpgdn prf sc insert delete 13 17 %23 backs 3 4 5. 81 (u) x