The block shown below is released from rest near the top of the hill. It slides down through the valley at the bottom and is launched into the air. Treat the ramp as frictionless, and ignore air resistance. A30 Will the block's center follow trajectory A, trajectory B, or trajectory C? Explain your reasoning. Hint: consider both the potential energy and the kinetic energy of the block at the peak of each trajectory.

The block shown below is released from rest near the top of the hill. It slides down through the valley at the bottom and is launched into the air. Treat the ramp as frictionless, and ignore air resistance. A30 Will the block's center follow trajectory A, trajectory B, or trajectory C? Explain your reasoning. Hint: consider both the potential energy and the kinetic energy of the block at the peak of each trajectory.

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 92AP: Two blocks, A and B (with mass 50.0 kg and 1.00 102 kg, respectively), are connected by a string,...

See similar textbooks

Similar questions

A pitcher claims he can throw a 0.145-kg baseball with as much momentum as a 3.00-kg bullet moving with a speed of 1.50 103 m/s (a) What must the baseballs speed be if the pitchers claim is valid? (b) Which has greater kinetic energy, the ball or the bullet?
Check Your Understanding There is a second solution to the system of equations solved in this example (because the energy equation is quadratic): v1.f=-2.5m/s , v2.f=0 . This solution is unacceptable on physical grounds; what’s with it?
An 8.0-g bullet has a speed of 800 m/s. (a) What is its kinetic energy? (b) What is its kinetic energy if the speed is halved?
Check Your Understanding (a) A car and a truck each moving with the same kinetic energy. Assume that the truck has more mass than the car. Which has the greater speed? (b) A car truck are each moving with same speed. Which has the greater kinetic energy?
(a) Sketch a graph of the potential energy function U(x)=kx2/2+Aex2 where k , A, and are constants. (b) What is the force corresponding to this potential energy? (c) Suppose a particle of mass in moving with this potential energy has a velocity v when its position is x = . Show that the particle does not pass 2+2 through the origin unless Amv2=k22(1e a 2 ) .
Two blocks, A and B (with mass 50.0 kg and 1.00 102 kg, respectively), are connected by a string, as shown in Figure P5.86. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between block A and the incline is k = 0.250. Determine the change in the kinetic energy of block A as it moves from to , a distance of 20.0 m up the incline (and block B drops downward a distance of 20.0 m) if the system starts from rest. Figure P5.86
Q12. The two tugboats each exert a constant force F = 20 N on the ship as shown in FigureQ12 These forces are always directed perpendicular to the ship's centerline. If the ship has amass m and a radius of gyration about its center of mass G of kG, determine the work done ofthe ship after it turns 80°. The ship is originally at rest. Where d = 6 m.
Al kg mass is projected from the edge of a 20 m tall building with an initial speed of 10 m's. The kinetic energy (in J) of the mass just before it hit the ground is: 20 m O a. 400 Ob. 200 300 Od. 350 O e. 250
A red VW Golf (Car A) has a velocity of 50km/h. An identical but blue W Golf (Car B), with the same mass as car A, has a velocity of 100km/h Which statement is correct?... Please explain MCQ choice (with calculations where needed) in the Rationale section! O A. Both have the same kinetic energy ) B. Car B has four times the kinetic energy of car A OC. Car A has twice the kinetic energy of car B D. Car B has twice the kinetic energy of car A
A box slides along the frictionless surface as shown in the figure. It is released from rest at the position shown.What would be the highest level that the box reaches in the other side: at level a, level b, or level c? Justify youranswer.
At time ti, the kinetic energy of a particle is41.1 J and its potential energy is 11.9 J. Atsome later time tf , its kinetic energy is 18.2 J and 34.8 J for potential energyIf the potential energy at time tf is 7.54 J,what is the work done by the nonconservativeforces acting on the particle?Answer in units of J.
Boxes A and B in the figure have masses of 10.0 kg and 2.0 kg, respectively. The two boxes are released from rest. Use conservation of energy to find the boxes' speed when box B has fallen a distance of 0.50 m. Assume a frictionless upper surface and a massless pulley. A В