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Question
Figure shows the velocity-time graph of a particle of mass 100 g moving in a straight line. Calculate the force acting on the particle.
(Hint : Acceleration = Slope of the v-t graph)
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Solution
Given mass, m = 100 g = 0.1 kg.
Slope of a velocity-time graph gives the value of acceleration.
Acceleration = Slope = `20/5` = 4 m/s2.
Force = Mass × Acceleration.
Force = 0.1 × 4 = 0.4 N.
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