60 3 5 R #3 PHYSICS 7C LEC A (47200) Course Home Vlew Available Hint(s) VAi %3D s/u Submit Part B Calculate AK, the change in the total kinetic energy of the system that occurs during the collision. • View Available Hint(s) ? 回 O Submit Provide Feedback MacBook Air 000 000 DD 110 F4 F5 F6 & 24 4T

60 3 5 R #3 PHYSICS 7C LEC A (47200) Course Home Vlew Available Hint(s) VAi %3D s/u Submit Part B Calculate AK, the change in the total kinetic energy of the system that occurs during the collision. • View Available Hint(s) ? 回 O Submit Provide Feedback MacBook Air 000 000 DD 110 F4 F5 F6 & 24 4T

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter3: Energy And Conservation Laws

Section: Chapter Questions

Problem 5P: In Section 1.4, we considered the collision of a karate expert’s hand with a concrete block. Based...

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In Section 1.4, we considered the collision of a karate expert’s hand with a concrete block. Based on the graphs in Figure 1.31, the initial downward speed of the fist with mass 0.75 kg is about -13 m/s and the collision time is approximately 25 ms. Find the impulse and the average force exerted on the block by the fist during the collision.
A 90.0-kg fullback running cast with a speed of 5.00 m/s is tackled by a 95.0-kg opponent running north with a speed of 3.00 m/s. (a) Why does the tackle constitute a perfectly inelastic collision? (b) Calculate the velocity of the players immediately after the tackle and (c) determine the mechanical energy that is lost as a result of the collision, (d) Where did the lost energy go?
Two carts on an air track have the same mass and speed and are traveling towards each other. If they collide and stick together, find (a) the total momentum and (b) total kinetic energy of the system, (c) Describe a different colliding system with this same final momentum and kinetic energy.
A Small pickup truck that has a caliper shell slowly coasts toward a red light with negligible friction. Two dogs in the back of the truck are moving and making various inelastic collisions with each other and the walls. What is the effect of the dogs on the motion of the center of mass of the system (truck plus entire load)? What is their effect on the motion of the truck?
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?
A 60kg bowling ball collides with a 0.005kg ping pong ball with an impact force of 60N, The force exerted by the ping-pong ball back on the bowling ball i OA 3N OB. 120N ⒸC.SON OD. Depends how fast things are going Reset Selection
4. A bullet ( v = 60 m/sec, m = 50 gram) is fired into an ice block (M=3 KG) resting on ice considered frictionless . The bullet is imbedded in ice block and they move together on ice. a. Find the common velocity they move together. b. Find the initial kinetic energy of the system. c. Find the final kinetic energy of the sys tem. d. Find the percent energy loss.
2. A 3 kg block moving to the right on a frictionless table at 4 % makes a head on collision with another 3 kg block moving 5 % to the left. a) If the collision is completely inelastic, find the fina! velocity of the blocks. b) If the collision is completely elastic, find the final velocity of the blocks. If half the initial energy is dissipated in the collision, find the final velocities of c) the blocks.
а. Mass b. Velocity С. Time d. Impulse е. Momentum f. Energy g. Distance h. Acceleration Identify the quantity of the given units. Choose from the choices above. 1. m/sec south 2. kg m/sec 3. km/hr 4. m/sec? 5. m/s/s
a) Compute the initial velocity of the sports car. b) Compute the total kinetic energy before and after the collision. How much energy was dissipated in the collision? What happens to it?
Pregunta 5 Sin responder aún Puntúa como 1.00 P Marcar pregunta Página anterior Tiempo restante 1:00:28 Jerome lanza una pelota de béisbol de masa 0.300 kg. La pelota llega al "home plate" con una velocidad de 40.0 m/s y es bateada directamente a Jerome con una velocidad de retorno de 52.0 m/s. ¿Cuál es la magnitud del cambio en el impulso de la pelota? O a. 12.0 kg-m/s O b. 15.6 kg-m/s. O c. 27.6 kg-m/s O d. 3.60 kg-m/s Siguiente página
a 2 kg ball moving at 4m/s to the right gets into an inelastic collision woth a 3kg batt al rest. determine the speed of both ohbexts after collision