physics

A 0.145 kg baseball is pitched at 42 m/s. The batter hits it horizontally to the pitcher at 58 m/s.

GIVEN:
m = 0.145 kg
v = 42 m/s

batter v = 58 m/s

a. Find the change in momentum of the ball.

p = mv

p = (0.145)(42)
p = 6.09
--> What velocity would I use? Would i use the velocity of the baseball

b. If the ball and bat are in contact for 4.6 x 10^-4 s, what is the average force during contact?

  1. 👍 0
  2. 👎 0
  3. 👁 848
  1. a) The sign of the velocity changes after the ball is hit. That makes the CHANGE in momentum equal to
    M[42 -(-58)] = 0.145 kg * 100 m/s

    b) Impulse
    = (average force) x (time of contact)
    = (change in momentum) = 14.5 kg m/s

    Solve for the average force

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    Now assume that the pitcher in Part D throws a 0.145-kg baseball parallel to the ground with a speed of 32 m/s in the +x direction. The batter then hits the ball so it goes directly back to the pitcher along the same straight

  2. Physics

    During a baseball game, a batter hits a pop-up to a fielder 82 m away. The acceleration of gravity is 9.8 m/s2 . If the ball remains in the air for 6.9 s, how high does it rise? Answer in units of m.

  3. Physics

    During a baseball game, a batter hits a high pop-up. If the ball remains in the air for 6.36 s, how high does it rise? The acceleration of gravity is 9.8 m/s 2 . Answer in units of m.

  4. physics

    ) A batter hits a baseball so that it leaves the bat at speed Vo = 37.0m/s at an angle ao = 53.1°, at a location where g = 9.80 m/S2. (a) Find the position of the ball, and the magnitude and direction of its velocity, at t = 2.00

  1. Physics w/ Calc

    A baseball approaches home plate at a speed of 43.0 m/s, moving horizontally just before being hit by a bat. The batter hits a pop-up such that after hitting the bat, the baseball is moving at 54.0 m/s straight up. The ball has a

  2. physics for scientists and engeneers I

    A 0.145-kg baseball pitched horizontally at 27 m/s strikes a bat and is popped straight up to a height of 43 m. If the contact time between the bat and the ball is 2.35 ms, calculate the average force [exerted by the bat on the

  3. physics

    the speed of the fastest pitched baseball was 45 m/s, and the ball's mass was 145 g. (a) What was the magnitude of the momentum of this ball, and how many joules of kinetic energy did it have? (b) How fast would a 57 gram ball

  4. physics

    During a baseball game, a batter hits a high pop-up. If the ball remains in the air for 6.65 s, how high does it rise? The acceleration of gravity is 9.8 m/s 2 . Answer in units of m CAN ANYONE HELP PLEASE ??????!!!

  1. Physics

    During a baseball game, a batter hits a high pop- up. If the ball remains in the air for 6.0s, how high does it rise? Hint: calculate the height using the second half of the trajectory

  2. Physics Class

    A 0.140-kg baseball is pitched horizontally at 36.7 m/s. When a player hits the ball, it moves at the same speed, but in the opposite direction. If the bat and the ball are in contact for 0.450 ms, calculate the average force the

  3. Calculating acceleration science

    A baseball picture who is standing 18.5 m from the batter throws a fastball moving at 40 m/s the batter swings contacts the ball for 0.03 and hits the ball straight back to the picture at 50 m/s. The velocities are constant Please

  4. Physics

    The instant before a batter hits a .14 KG baseball, the velocity of the ball is 45 meters per second west. The instant after the batter hits the ball, the ball's velocity is 35 meters per second eat. The bat and ball are in

You can view more similar questions or ask a new question.