F(N)4 30 t (msec) 50 100

A 100g ball traveling horizantally at 25 m/s strikes a wall and rebounds at 19 m/s. What is the magnitude of the impulse experienced by the ball during the rebound? A. 1.2 Ns B. 1.8 Ns C. 4.4 Ns D. 5.4 Ns E. 7.2 Ns

When there is motion is both directions, state which direction is positive at the START of the problem.  For the impulse-momentum and the conservation of momentum problems: Plug your GIVEN VALUES into the equation FIRST then do the algebra. Use the following equations: F t = m vf -m vi  m1 vi1 + m2 vi2 = m1 vf1 + m2 vf2 m1 vi1 + m2 vi2 = (m1 + m2) vf (m1 + m2) Vi = m1 vf1 + m2 vf2 2. ) The baseball is traveling at 90 mph to the left towards the batter. The batter strikes the 0.05 slug baseball with a force of 50.00 lbs. The bat is in contact with the softball for 0.25 seconds. Assume that the baseball is traveling directly in the opposite direction after being hit with the bat. a. what is the velocity of the baseball after being hit by the batter? show all unit conversions-if any, step by step.

A model rocket is constructed with a motor that can provide a total impulse of 26.0 N-s. The mass of the rocket is 0.117 kg. What is the speed that this rocket achieves when it is launched from rest? Neglect the effects of gravity and air resistance. Number i Units

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

A hockey player passes a 0.168kg puck that is initially sliding backward at 5.00m/s. The force exerted by the player's stick on the puck is 1300.ON[forward], and the stick is in contact with the puck for 5.00ms. a. Find the impulse imparted by the stick to the puck and b. calculate the speed of the puck just after it leaves the hockey stick.

Please have answers computer typed.

I. Conceptual Physics. Justify your answer. 1. A 10-gram rubber ball and a 10-gram clay ball are thrown at a wall with equal initial speeds. The rubber ball bounces, the clay ball sticks. Which ball exerts a larger impulse on the wall? Justify your answer.

Ball A, with a mass of 2.00 kilograms and an initial velocity of +4.00 meters per second, collides head-on with ball B, which has a mass of 3.00 kilograms and is initially at rest. If the collision is elastic, what are the velocities of the balls after the collision? Include units in your answers. Hint: Do not use a magical book equation! Consider what two quantities are conserved in this elastic collision. 4.0 4.0 S (ball A) (ball B)

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…