An object moves with an acceleration of $3 {m s}^{- 2}$ when a force of $30 N$ is applied. The mass of the body is:

30 k g

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20 k g

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40 k g

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10 k g

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Solution

The correct option is D $10 k g$
Given, force, $F = 30 N$ and acceleration, $a = 3 {m s}^{- 2}$ .
Let m be the mass of the body.
We know, $F = m a$ (Newtons's second law of motion)
$∴$ $m = \frac{F}{a} = \frac{30}{3} = 10 k g$
Therefore, mass of the body is $10 k g$ .

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An object moves with an acceleration of 3 m s−2 when a force of 30 N is applied. The mass of the body is:

The correct option is D 10 kgGiven, force, F=30 N and acceleration, a=3 m s−2. Let m be the mass of the body. We know, F=ma (Newtons's second law of motion) ∴ m=Fa=303=10 kg Therefore, mass of the body is 10 kg.

An object moves with an acceleration of $3 {m s}^{- 2}$ when a force of $30 N$ is applied. The mass of the body is:

The correct option is D $10 k g$
Given, force, $F = 30 N$ and acceleration, $a = 3 {m s}^{- 2}$ .
Let m be the mass of the body.
We know, $F = m a$ (Newtons's second law of motion)
$∴$ $m = \frac{F}{a} = \frac{30}{3} = 10 k g$
Therefore, mass of the body is $10 k g$ .