Question

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

Answer 1

Answer: 20 seconds

Explanation:

Given,

    F= 100 N

    M = 20kg

     v = 100m/s

Now,

 Acceleration (a) = f/m = 100/20 = ∴ Time, (t) = 5 m/s²

 v = u + a*t

 100 = 0 + 5 * t

∴ t = 100/5 = 20 sec

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