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# A pitcher throws a 0.75 kg baseball at 30 m/s towards a batter The batter swings and applies 7000N of force on the ball. The contact time between the...

A pitcher throws a 0.75 kg baseball at 30 m/s towards a batter The batter swings and applies 7000N of force on the ball. The contact time between the bat and the ball is 0.0501s.

1. Calculate initial momentum of the ball
2. Calculate the impulse of the bat on the ball
3. Calculate the final momentum of the ball
4. Calculate the final velocity of the ball

Here's the explanation you needed for... View the full answer

• I was assuming that initially the ball was travelling in right direction , so it's taken positive , therefore Impulse and vf are negative
• math_phys_EE_helper
• Apr 05, 2018 at 12:27am
• If vi was considered to be to the left (negative ) then both Pf and impulse would be positive
• math_phys_EE_helper
• Apr 05, 2018 at 12:29am
• math_phys_EE_helper
• Apr 05, 2018 at 12:29am

a) Calculate initial momentum of the ball Initial momentum = mass of the ball*velocity of the ball = 0.75 kg*30 m/s = 22.5... View the full answer

Here is a detailed explanation... View the full answer

1) initial momentum of the ball is = 22.5 kg.m/s 2) the impulse... View the full answer

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