mass is 200 kg velocity attained by the automobile in 3 second is 12 metre per second find the force
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The answer is 800 N
Explanation:
mass = m = 200kg
velocity after 3 seconds = Vf = 12m/s
=> acceleration = Vf - Vi / t
(if the mass is at rest first then the initial velocity would probably = 0)
=> acceleration = 12-0/3 = 12/3 = 4m/s2
Thus the force = m×a = 200 × 4 = 800 N
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