A force of 100 N acting on q certain mass for 4 s gives it a velocity of 20m/s. Find the mass of the body if It was initially at rest
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Acceleration = Velocity/Time = 20/4 = 5m/s²
Force = Mass × Acceleration
Mass = Force/Acceleration = 100/5 = 20 kg
Therefore, mass of the body is 20 kg.
- 20 kg is the right answer.
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