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For how long should a force of 100 N act on a body of 20 kg so that it acquires a velocity of 100 m/s?

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For how long should a force of 100 N act on a body of 20 kg so that it acquires a velocity of 100 m/s?

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Mass of the body = 20 kg

Initial velocity u = 0 m/s

Final velocity v = 100 m/s

Force F = 100 N

Acceleration a = \(\frac{F}{m}\) = \(\frac{100}{20}\)

= 5 m/s2

Time t = \(\frac{v - u}{a}\) = \(\frac{100 - 0}{5}\)

= 20 s

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