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Average force

  • Thread starter midey
  • Start date
  • #1
2
0

Homework Statement


A 0.25 kg ball moving at 13 m/s is struck by a bat and leaves the bat travelling at 19 m/s in the opposite direction to its initial direction. If contact between bat and ball lasts for 0.01 s what is the average force exerted by the bat on the ball?


Homework Equations



F= MA

The Attempt at a Solution


0.25X (13+19) but then what solution do i use for the time
 
Last edited:

Answers and Replies

  • #2
Doc Al
Mentor
44,945
1,206
Look up the impulse-momentum theorem.
 
  • #3
51
0
what does acceleration equal .. ??

Change in what / change in what ... ??

Find the initial and final velocities and change in time and u r done. ^^
 
  • #4
Average force exerted by the bat on the ball = Rate of change in momentum, juz divide what u find with time.
 

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