A ball of mass 0.2 , kg moves with a velocity | vedclass

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Question

(A) Given:Mass of the ball,$m = 0.2 \, kg$Initial velocity,$u = 20 \, m/s$Final velocity,$v = 0 \, m/s$ (since it stops)Time taken,$\Delta t = 0.1 \,

Vedclass · Accepted Answer

$40$

Vedclass · Answer

(A) Given:Mass of the ball,$m = 0.2 \, kg$Initial velocity,$u = 20 \, m/s$Final velocity,$v = 0 \, m/s$ (since it stops)Time taken,$\Delta t = 0.1 \, s$According to Newton's Second Law of Motion,the force $F$ is given by the rate of change of momentum:$F = \frac{m(v - u)}{\Delta t}$Substituting the values:$F = \frac{0.2 	imes (0 - 20)}{0.1}$$F = \frac{0.2 	imes (-20)}{0.1}$$F = \frac{-4}{0.1} = -40 \, N$The magnitude of the force is $40 \, N$.

$A$ ball of mass $0.2 \, kg$ moves with a velocity of $20 \, m/s$ and it stops in $0.1 \, s$; then the force on the ball is ........... $N$.

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