posted by flirtyme

A baseball bat hits a ball with an average force of 970N that acts for 0.0088s.

a) what impulse was given to the ball/

b)What was the change of momentum of the ball?

c)The ball was hit back in the same direction that it came from. If its speed before being hit was 32ms-1, what was its speed afterwards? (Mass of baseball was 145g)

please help I would really appreciate you for the rest of my life. and is physics that important? its hard for nothing really

  1. Damon

    Force * time = impulse or change of momentum

    a) so Impulse = 970*0.0088

    b) As I said, impulse IS change of momentum

    c) initial momentum = -.145*32
    (calling negative speed from pitcher to batter, positive from batter to center field)
    The change of momentum is up in parts a and b
    .145 v = -.145*32 + answer to part b

Respond to this Question

First Name

Your Answer

Similar Questions

  1. physics- PLEASE HELP

    2. A .12 kg ball is moving at 6 m/s when it is hit by a bat, causing it to reverse direction and have a speed of 14 m/s. What is the change in the magnitude of the momentum of the ball?
  2. physics

    A baseball player hits a baseball (m = 0.145 kg) The ball is initially traveling horizontally with speed of 36 m/s. The batter hits a fly ball as shown, with a speed vf = 54 m/s. (a) What is the magnitude and direction of the impulse …
  3. physics

    A 0.01-kg baseball traveling in a horizontal direction with a speed of 12 m/s hits a bat and is popped straight up with a speed of 15 m/s. (a) What is the change in momentum (magnitude and direction) of the baseball?
  4. physics

    a .415 kg baseball is pitched at 42 m/s. the batter hits it horizontally to the pitcher at 58 m/s. a) find the change in momentum of the ball. b) if the ball and bat were in contact for 4.6*10^-4 s what would be the average force while …
  5. Physics

    A baseball whose mass is 0.25kg is struck by a bat. just before impact, the ball is traveling horizontally ay 40m/s to the left and it leaves the bat at an angle of 30 degrees above the horizontal with a speed of 60m/s. if the ball …
  6. Physics ~IMPULSE~

    a) A tennis racket a 450 N force on a 0.05 kg tennis ball over a 0.006 s time period. What is the impulse applied to the ball?
  7. Physics

    A 0.149-kg baseball is pitched a 40 m/s. The batter hits it horizontally to the pitcher at 56 m/s. Find the change in momentum of the ball. If the ball and bat were in contact 4.2 multiplied by 10-4 s, what would be the average force …
  8. Physic

    A 135 g baseball traveling at a speed of 36 m/s hits a bat and moves back along its incoming trajectory with a speed of 47 m/s. a) What is the impulse delivered to the ball by the bat?
  9. physics

    In a Little League baseball game, the 145 g ball enters the strike zone with a speed of 13.0 m/s. The batter hits the ball, and it leaves his bat with a speed of 21.0 m/s in exactly the opposite direction. 1. what is the magnitude …
  10. physics

    A pitcher throws a 0.141-kg baseball toward the batter so that it crosses home plate horizontally and has a speed of 42 m/s just before it makes contact with the bat. The batter then hits the ball straight back at the pitcher with …

More Similar Questions