TS EAMCET · Physics · Work Power Energy
A ball of mass moving with a speed of is brought to rest in The average force applied to the ball is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
Step-by-step Solution
Detailed explanation
The mass is given of the ball is, m=0.2 kg, now first calculate the retardation of the ball, using the first equation of the motion, v=u+at⇒0=20+a×0.1⇒a=-200 m s-2 So the average force applied to the ball, F=ma=0.2×200=40 N
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