How does the work required to accelerate a particle from 10 m/s to 20 m/s compare to that required to accelerate it from 20 m/s to 30 m/s ? A It is less. It is the same. C It is greater. It cannot be determined without knowing the magnitude of the force exerted on the particle.
Q: Q2. An 80 kg dog is lying on the floor at rest. The coefficient of kinetic friction between the dog…
A: We are given force by person. We first find the work done by the person. This is done by finding net…
Q: A 70.0 kg sled is pulled from rest by a snowmobile and accelerates at 2.2 m/s² [forward] for 7.5 s.…
A:
Q: 3. The principle of work and energy. A particle of mass m moves along a curve under the action of a…
A: Solution: A particle of mass m moves along the curve under the action of force vector F. Let us take…
Q: man does 4,720 J of work in the process of pushing his 2.70 103 kg truck from rest to a speed of v,…
A:
Q: our physics book is resting in front of you on a horizontal table in the campus library. You push…
A: Given that, The final position of the book is at 0.4 mm north and 0.3 mm east If the book is going…
Q: A 5.30 kg steel ball is dropped onto a copper plate from a height of 10.0 m. If the ball leaves a…
A:
Q: A net force along the x-axis that has x-component F, = -12.0 N+(0.300 N/m² )æ² is applied to a 4.50…
A:
Q: Cray-Zee is speeding along at 23.4 m/s as she approaches the level section of track near the loading…
A: Given Data: Initial velocity, u=23.4 m/s Final velocity, v=2.9 m/s Distance traveled, s=6.66 m The…
Q: A net force along the x-axis that has x-component F₂ = -12.0 N+ (0.300 N/m²)a² is applied to a 3.60…
A:
Q: A man pushing a crate of mass m = 92.0 kg at a speed of v = 0.875 m/s encounters a rough horizontal…
A:
Q: The 40 kg crate is traveling to the right with an initial v0=1.2 m/s, when a person begins to pull…
A: Given, mass of block = 40 kg initial velocity = 1.2 m/s
Q: A toy cannon uses a spring to project a 5.22-g soft rubber ball. The spring is originally compressed…
A: mass = 5.22 g original compression (d) = 4.93 cm k = 7.98 N/m d1 = 14.4 cm f = - 0.0316 N
Q: A block of mass m is initially at the origin and moving to the right across a frictionless surface…
A: First of all we have to express acceleration in terms of velocity and distance. After that…
Q: A box of mass 19 kilograms is sliding along at 1.4 meters per second. Roy pulls the box in the same…
A: The free body diagram is shown below
Q: A 1.7 kg block is initially at rest on a horizontal frictionless surface when a horizontal force in…
A: Given data: Mass of the block, m = 1.7 kg Initial velocity of the block vi = 0 m/s Applied…
Q: A 16-kg rock is going to be moved either vertically or horizontally. Consider the acceleration due…
A:
Q: In the figure, a horizontal force F, of magnitude 22.0N is applied to a 2.81 kg book as the book…
A: Solution:-Given thatFa=22 Nm=2.81 kgd=0.36 mθ=30°g=9.81 m/s2
Q: A man does 4,730 J of work in the process of pushing his 2.30 × 10³ kg truck from rest to a speed of…
A: Given Work done = W = 4730 J Mass of truck = m = 2.30 × 103 kg Initial velocity of truck = u = 0…
Q: A particle moves in the xy plane from the origin to a point having coordinates x=7 m and y=4 m under…
A:
Q: What is the speed of the object when it reaches the point r = 7.80 m? %3!
A: Given data: Fx = (-12 + 0.3x2 )N m = 4.9 kg Initial condition: at x = 0; v = - 8.6 m/s
Q: A mass of 2 kg is projected with a speed of 3 m/s up a pla inclined 20° with the horizonal. After…
A:
Q: Particle A has mass m. Particle B has twice the mass of Particle A. The same constant force F acts…
A: According to the work-energy theorem, the amount of workdone on an object is equal to the change in…
Q: A 62.0 kg skier is moving at 6.10 m/s on a frictionless, horizontal, snow-covered plateau when she…
A: Law of conservation of energy:According to this law, the total energy of an isolated system remains…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- F1 Z Problem 7.65 You are an industrial engineer with a shipping company. As part of the package-handling system, a small box with mass 1.50 kg is placed against a light spring that is compressed 0.280 m. The spring, whose other end is attached to a wall, has force constant k = 48.0 N/m. The spring and box are released from rest, and the box travels along a horizontal surface for which the coefficient of kinetic friction with the box is μ = 0.300. When the box has traveled 0.280 m and the spring has reached its equilibrium length, the box loses contact with the spring. 12.772 ' 2 F2 W S A X command 10 # 3 80 F3 E D C $4 888 F4 R F APR 28 % 5 V T G 6 What is the speed of the box at the instant when it leaves the spring? Express your answer with the appropriate units. 45 HÅ 1 www ? V= Value Units You have already submitted this answer. Enter a new answer. No credit lost. Try again. Submit Previous Answers Request Answer Part B. What is the maximum speed of the box during its motion?…After being hit, a 950 g rock with an initial speed of 455 cm/s slides along a horizontal road against a friction force of 1.91 N. a) How long will it take before it stops? b) What is the coefficient of kinetic friction between the surfaces? c) How much kinetic energy did the rock possess after being hit?Calculate the force needed to bring a 900 kg car to rest from a speed of 90.0 km/h in a distance of 110 m (a fairly typical distance for a nonpanic stop).N(b) Suppose instead the car hits a concrete abutment at full speed and is brought to a stop in 2.00 m. Calculate the force exerted on the car and compare it with the force found in part (a), i.e. find the ratio of the force in part(b) to the force in part(a).(force in part (b) / force in part (a))
- Cray-Zee is speeding along at 26 m/s as she approaches the level section of track near the loading dock of the Whizzer roller coaster ride. A braking system abruptly brings the 392-kg car (rider mas included) to a speed of 3 m/s over a distance of 5.7 meters Determine the magnitude (positive answer) of the braking force applied to Cray-Zee's car. Answer: NTwo boxes, Box A and Box B, are given an initial push and start moving at equal speed along a level, frictionless surface. The Box B has twice the mass of Box A. They both slide up the same frictionless incline plane. Which box rises to a greater height? Group of answer choices A) Box A rises to the greater height because it weighs less. B)The two objects rise to the same height. C) Box B rises to the greater height because it contains more mass. D) Box A rises to the greater height because it possesses a smaller amount of kinetic energy. E) Box B rises to the greater height because it possesses a larger amount of kinetic energy.An object starts from rest at the origins and moves along the x-axis subject to the force shown in the diagram. If the mass of the object is 53kg, determine the speed of the object at the following positions. Each unit along the position axis is 2.0m and each unit along the force axis is 2.0N.