TS EAMCET 5-Aug-2021 Shift 1 Question Paper

Given,
Mass of ball, m=0.2kg
Initial speed of ball, u=20m∕s
Final speed of ball, v=0ms−1
Time taken, t=0.1s
As we know that,
F‌‌=ma
⇒‌‌F‌‌=m(‌

v−u

t

)
where, F is force.
∴‌‌F‌‌=‌

2

10

(‌

0−20

1 10

)
‌‌=‌

2

10

(−200)
‌‌=−40N
Here, -ve sign shows that force is applied in the opposite direction of velocity. These |F|=40N