Given: 1kg = 1000g 

1. A pitcher threw a pitch that generated an impulse of 3.25 N⋅s on the catcher's glove. If the mass of the baseball is 142g, what was the velocity of the pitched baseball when it hit the catcher's glove?

 

2. Robert has a mass of 75 kg and is traveling with a velocity of -2.73 m/s when he collides head-on with Larry, who has a mass of 50 kg and is traveling at +6.25 m/s. What will happen to Robert and Larry's motion (velocity) after the collision, assuming they 'stick together' following the collision? 

 

3. A high-jumper with a body mass of 53kg exerts a force of -3250 N against the ground during takeoff (jumping upward). The jumper's average velocity was 8.5m/s during the takeoff period. The jumper's foot was in contact with the ground for 0.8 s during the takeoff period. How much force does the ground exert on the high-jumper (ground reaction force) during the takeoff period?

 

 4. What is the acceleration of a 0.25 kg hockey puck that is hit with 300N of force by a hockey stick? 

 

5. A pitched ball with a mass of 350g reaches a catcher's glove, traveling at a velocity of 17 m/s. a. How much momentum does the ball have? b. How much impulse is required to stop the ball? c. If the ball is in contact with the catcher's glove for 0.65 seconds during the catch, how much average force is applied by the glove?

Answer rating: 100% (QA)

Lets solve the physics problems youve presented 1 Impulse and Velocity of a Baseball Given Impulse J 325 Ns Mass m 142 g 0142 kg Velocity v Impulse is ... View the full answer