A 0.240-kg billiard ball that is moving at 3.00 m/s strikes the bumper of a pool table and bounces straight back at 2.40 m/s (80% of its original speed). The collision lasts 0.0150 s. Calculate the loss of energy in this case. options + 70 J -59.0 J -40.0 J 0 J

4. A 1590-kilogram truck moving with a speed of 23.0 m/s runs into the rear end of a 1090-kilogram stationary car. If the collision is completely inelastic, how much kinetic energy is lost in the collision? sf6 60 ssfot sf60

Two objects are on a collision course. Object #1 has a mass of 4.6 kg and an initial velocity of 7.3 m/s i. Object #2 has a mass of 7.7 kg and an initial velocity of --11.2 m/s i. After colliding, Object #1 has a velocity of -2 m/s i. What is the change in kinetic energy of the system?

A time-dependent force, F(t) = (8t + 9t^2) N, acts in the x-direction on a 2.0 kg stationary object. Find the momentum of the object in the x-direction after the force has acted for 1 s.

I.  A lump of clay (m = 3.01 kg) is thrown towards a wall at speed v = 3.15 m/s.  The lump sticks to the wall.  (a) What kind of collision is it?  Is momentum conserved during this collision?  Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost during this collision.   II.  Same lump is thrown towards the same wall, but this time it bounces off the wall at speed of 3.15 m/s. (a) What kind of collision is it?  Is momentum conserved during this collision?  Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost during this collision.   III.  Same lump is thrown towards the same wall, but this time it bounces off the wall at speed of 2.24 m/s. (a) What kind of collision is it?  Is momentum conserved during this collision?  Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic…

Cart A (m=2 kg) is moving to the right down a frictionless track at 8 m/s and collides with stationary cart B (m=.5 kg). After the collision, cart B moves to the right at 6 m/s. What is the velocity of cart A after the collision?  -0.7 m/s 6.5 m/s 4.3 m/s 11.7 m/s