Question:
The time taken by a net force of 10 N to change the velocity by 4 m/s of a body of mass 10 kg is:
The time taken by a net force of 10 N to change the velocity by 4 m/s of a body of mass 10 kg is:
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The time taken to change the velocity can be calculated using the equation \( t = \frac{\Delta v}{a} \), where \( \Delta v \) is the change in velocity and \( a \) is the acceleration.
Updated On: Mar 18, 2026
- 4 s
- 6 s
- 8 s
- 2 s
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The Correct Option is A
Solution and Explanation
We use Newton's second law to find the acceleration of the body:
\[
F = m \cdot a \quad \Rightarrow \quad a = \frac{F}{m} = \frac{10}{10} = 1 \, \text{m/s}^2
\]
Now, using the equation of motion:
\[
\Delta v = a \cdot t \quad \Rightarrow \quad t = \frac{\Delta v}{a} = \frac{4}{1} = 4 \, \text{seconds}
\]
Therefore, the time taken is 4 seconds.
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