A force of 10 N acts on a mass of 5 kg for 5s. If the body is initially at rest, what is the final velocity of the body?

5 m/sec

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20 m/sec

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10 m/sec

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4 m/sec

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Solution

The correct option is C
10 m/sec

Acceleration of the body = $\frac{10}{5}$ = 2 $\frac{m}{{s e c}^{2}}$

As, v = u + at

$\Rightarrow$ v = 0 + 2(5) = 10 $\frac{m}{s e c}$

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A force of 10 N acts on a mass of 5 kg for 5s. If the body is initially at rest, what is the final velocity of the body?

The correct option is C 10 m/sec Acceleration of the body = 105 = 2 msec2​ As, v = u + at ⇒ v = 0 + 2(5) = 10 msec

The correct option is C
10 m/sec

Acceleration of the body = $\frac{10}{5}$ = 2 $\frac{m}{{s e c}^{2}}$

As, v = u + at

$\Rightarrow$ v = 0 + 2(5) = 10 $\frac{m}{s e c}$