15.28 The masses of the three blocks are mA = = 40 kg, mg = 16 kg, and mc = 12 kg. Neglect the mass of the bar holding C in place. Friction is negligible. By applying the princi- ple of work and energy to A and B individually, determine the magnitude of their velocity when they have moved 500 mm.
Q: At time ti, the kinetic energy of a particle is41.1 J and its potential energy is 11.9 J. Atsome…
A: The work-energy theorem gives,
Q: 5.86 kg rock is dropped and allowed to fall freely. Find the initial kinetic energy, the final…
A:
Q: The human small intestine moves food alongits 6.9-m length by means of peristalsis, a contraction…
A:
Q: A 2.5 kg mass is initially at rest on a horizontal surface. An applied force acts in the +x…
A: Given, Mass 'm' = 2.5 kg displacement 'd' = 1.5 m final speed 'v' = 4 m /s at distance of 150 m…
Q: The force F =(4.58N)i +(5.31N)j acts on a particle as it moves along the following path. 1. First…
A:
Q: A force F = (20.0i + 18.0j + 24.0k) N acts on a small object of mass 95 kg. What will be the…
A:
Q: Part Ia: Exploring the effect of mass on the conservation of energy without friction quantitatively.…
A: Given: A skater is sliding on a ramp. The force applied on the skater will be component of weight of…
Q: 9.108. For a car weighing 980 kg, how much work must be done to move the car 24 miles? Ignore…
A: First, we must understand what is work done. Work is the energy transfer that happens when an object…
Q: Solve the following with illustartion. Solution should be clear and systematic. A 95 kg…
A:
Q: pendulum with a ball of mass 6.87 kg and length 14.2 m is released from rest at an angle of 54.18…
A:
Q: The resilin in the body of a flea has a forceconstant of about 24 N>m, and when the flea cocks…
A:
Q: What is the magnitude (in joules) of the work done by friction if constant horizontal applied force…
A:
Q: A 2.1 kg object slides across a horizontal surface with an initial speed of 5.77 m/s. If the object…
A: Mass (m) = 2.1kgInitial velocity (Vi) = 5.77 m/sFinal velocity (Vf) = 0 m/sRequired:Work done by…
Q: (a) Compute the potential energy stored in the bow, if the arrow of mass 5.50 x 10 energy is…
A: Givenm=5.5×10-2 kgv=37.0 m/s
Q: A 19.8 kg block is dragged over a rough, horizontal surface by a constant force of 183 N acting at…
A: Work done by the frictional force is,
Q: A block of mass m - 2.65 kg slides along a horizontal table with speed = 9.00 m/s. At x = 0, it hits…
A:
Q: What is the Net Work ? Wnet = Fnetd cos θ Cart Mass, mc . 284 kg Angle, theta 49 degrees Distance,…
A:
Q: A 2.3 kg mass is initially at rest upon a horizontal surface. It is then acted upon by an applied…
A:
Q: A 4 kg particle has a position vector as a function of time given by: r(t) = 3 t3i + -6 t3j (m)…
A: The mass of the particle is, m=4 kg. The position vector of the particle is, rt=3t3 i^-6t3 j^ m. The…
Q: An advertisement shows a 1239 kg1239 kg car slowly pulling at constant speed a large passenger…
A: The car having a mass of 1239 kg is pulling the Boeing 707 aircraft, with a mass of 62.5 tons, at a…
Q: A 1.8 kg object slides across a horizontal surface with an initial speed of 6.77 m/s. If the object…
A: Mass (m) = 1.8 kgInitial velocity (Vi) = 6.77 m/sFinal velocity (Vf) = 0 m/sRequired:Work done by…
Q: Use g = 10 m/s/s. When released from rest, mass 1 of 5 kg slides down the 30° ramp to reach a speed…
A: Given: Acceleration due to gravity, g=10 m/s2 m1=5 kg θ=30° The initial velocity of mass m1, u=0 m/s…
Q: 6. A dinner plate, of mass 580g is pushed 90cm along a dining table by a constant force of F=3.6N…
A:
Q: A 100.0 g mass falls off the table in the physics lab. You measure the table to be 94.0 cm high.…
A: Given data: A mass falls off the table Mass (m) = 100.0 g = 0.100 kg Vertical distance (d) = 94.0…
Q: A 40 m long chain hangs freely from a ledge. Suppose the chain has a total mass of 800 kg. How much…
A:
Q: A 2.00-kg object has a velocity (6.20 1 - 1.80 ĵ) m/s. (Note: From the definition of the dot…
A: The answer is given in the explanation page.Explanation:a) To find the kinetic energy of the object,…
Q: A 5.60 kg dynamics cart is accelerated from rest at 2.80 m/s2[W] on a horizontal surface over a…
A:
Q: A 5.00-kg object has a velocity (7.00i – 2.00j) m/s. (a) What is its kinetic energy at this moment?…
A: Part aWhat is its kinetic energy at this moment? part(b) What is the net work done on the object if…
Q: Find the work done in joule by the force F= (-40 i+30 j) on a particle as the particle moves a…
A: Solution: Given that Force F = (-40i+30j) N Displacement S = (-3i-9j )m
Q: A toy cannon uses a spring to project a 5.33-g soft rubber ball. The spring is originally compressed…
A:
Q: A toy rocket with a mass of 328 grams is launched into the air using a spring. At the apex of the…
A: kinetic energy is given as K= 1/2 M V^2 here M is the mass and V is the speed of body
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- A toy rocket with a mass of 391 grams is launched into the air using a spring. At the apex of the trajectory, the height is 6.9 metres and the velocity is 10.3 m/s. What is the kinetic energy (in J) of the rocket at this location [round your final answer to one decimal place]? В C A hB hc hAWhen a car is moving at constant speed, the developed potential is used to overcome the frictional forces exerted by the air and the road. If the power developed by the motor is 50.0 hp, what is the total frictional force acting on the car at 24.6 m / s? 1 hp = 746 W.A mechanic pushes a 3770 kg car from restto a speed of v, doing 4845 J of work in theprocess.Find the speed v. Neglect friction betweencar and road.Answer in units of m/s.
- A 2.5 kg mass is initially at rest on a horizontal surface. An applied force acts in the +x direction resulting in a displacement of 1.50 m. If the speed of the mass is 4.00 m/s at the 1.50 m mark, what net work was done?As in the problem above, the particle is projected to the right with initial kinetic energy T, but subject to a force F(x) = -kx + kx'/A", where k and A are positive con- stants. Find (a) the potential energy function V(x) for this force; (b) the kinetic energy, and (c) the total energy of the particle as a function of its position. (d) Find the turning points of the motion and the condition the total energy of the particle must satisfy if its motion is to exhibit turning points. (e) Sketch the potential, kinetic, and total energy func- tions. (Optional: Use Mathcad or Mathematica to plot these functions. Set k and A each equal to 1.) 2.5When a 78.0 kg skateboarded passes point P, his mechanical energy is 3.68 x 10^3 J relative to the ground.When he passes point Q he is moving at 8.15 m/s. How high is the skateboarder (relative to the ground) at point Q? Assume that the skateboard rolls with negligible friction.
- What is the Net Work ? Wnet = Fnetd cos θ Cart Mass, mc . 284 kg Angle, theta 49 degrees Distance, d . 75 m Suspended Mass, ms . 300 kg Velocity 1 1. 343 m/s Velocity 2 1 . 354 m/s Velocity 3 1 . 348 m/s Average Velocity 1 . 348 m/s Kinetic Energy . 258 JA bullet having mass of 0.002kg hits a stationary block of wood having a mass of 14kg. The coefficient of kinetic friction between the block and floor is 0.12, and the block slides 3mm on the floor as a result of impact. Compute the energy lost during the impact. Provide FBD. Thank yooou.A 5.60 kg dynamics cart is accelerated from rest at 2.80 m/s2[W] on a horizontal surface over a displacement of 3.75m [W]. Ignoring friction, what is the average power required to do this work?
- A box of mass mmm = 2.5 kg (moving in the positive x-direction) has a velocity of 2 m/s at t = 0, and has a velocity of 6.0 m/s at time t = 2.0 s. From t = 0 to t = 2.0 s, a force Fx acts on the box in the direction of motion. Find the work done by Fx.A 5.42-kg object passes through the origin at time t = 0 such that its x component of velocity is 5.25 m/s and its y component of velocity is −3.24 m/s. (a) What is the kinetic energy of the object at this time? J (b) At a later time t = 2.00 s, the particle is located at x = 8.50 m and y = 5.00 m. What constant force acted on the object during this time interval? magnitude = N direction= ° measured from the +x axis (c) What is the speed of the particle at t = 2.00 s? m/sA simple pendulum, consisting of a mass of 8.691 kg, is attached to the end of a 3.23 m length of string. If the mass is held out horizontally, and then released from rest, the speed of the mass (in m/s) at the bottom of the swing is: