Question

☆☆situation describing :
{A uniformly moving cricket ball turned back by hitting it with a bat for a very short time-interval.}
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\bf{ Ques:-}Ques:− 
1) the hitting of cricket ball with bat is a impulsive force right? an internal force....so overall \ F_{ext} Fext​ must be 0,means no acceleration in object,..so how the acceleration graph is given here?
2)explain the given example with this graph. 
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☆\bf{Help\;!,\;in\;great\;confusion}Help!,ingreatconfusion

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Answer 1

Answer:

As we know that

Impulse=F×t

=mv

Yes,It is impulse force as Force is applied by bat for some seconds.

If we take out area under slope we get m/s,i.e velocity.

overall force is not 0 as when the ball strikes bat then an opposite firce is applied by bat to throw the ball far away distance.

F=m×a

Let m=50g(ball)

a=30m/s(speed of ball)

F=1500N.

It can change accordingly.

But cant be zero,In this condition

Answer 2

Refer To the above attachment for a while ...