rishabh.mission
  • rishabh.mission
A ball of mass m bounces back b/w two surfaces with a speed u . a) find the average force on each wall. b) If one surface slowly move toward the other with a speed of v <<<< u .find the force exerted by the ball on moving surface .the gravity is neglected & the collision is perfectly elastic.
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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rishabh.mission
  • rishabh.mission
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anonymous
  • anonymous
a. if 2l is smaller than u....then no of collisions per sec= u / 2l so av force on each wall= change in momentum per second av force= (2mu)* u/2l
rishabh.mission
  • rishabh.mission
can u plz elaborate..

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anonymous
  • anonymous
tell me...where u got stuck in part 'a' answer?
anonymous
  • anonymous
do u agree that no of collisions per sec= u/2l?
anonymous
  • anonymous
distance traveled by ball in 1s= u m
rishabh.mission
  • rishabh.mission
how i solve 1st part ?
anonymous
  • anonymous
1st...how many times the ball will collide with any one of the wall in 1s?
anonymous
  • anonymous
distance traveled by ball in 1s= u m.....right?
rishabh.mission
  • rishabh.mission
i don't know
anonymous
  • anonymous
speed of ball is u m/s...so how much distance it'll travel in 1 second?
rishabh.mission
  • rishabh.mission
u know hindi
anonymous
  • anonymous
yes

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