A force of 100 dynes acts on mass of 5, gm for 10, sec . velocity produced is .......... cm/sec

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4-1.Newton's Laws of Motion

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A force of $100$ dynes acts on mass of $5\, gm$ for $10\, sec$. The velocity produced is .......... $cm/sec$

A

$2$

B

$20$

C

$200$

D

$2000$

Solution

(c) Acceleration $a = \frac{F}{m} = \frac{{100}}{5} = 20\;cm/{s^2}$

Now $v = at = 20 \times 10 = 200\,cm/s$

Standard 11

Physics

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