MCQ
A ball of mass $150\,g$ starts moving with an acceleration of $20m/{s^2}$. When hit by a force, which acts on it for $0.1\, sec$. The impulsive force is ........ $N-s$
- A$0.5 $
- B$0.1 $
- ✓$0.3$
- D$1.2$
✓
Answer
Correct option: C.
$0.3$
c
(c) Impulse $=$ Force $×$ time = $ m \times a \times t = 0.15 \times 20 \times 0.1 = 0.3\,N{\rm{ - }}s$
(c) Impulse $=$ Force $×$ time = $ m \times a \times t = 0.15 \times 20 \times 0.1 = 0.3\,N{\rm{ - }}s$
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