Physics
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 v-t graph)
Laws of Motion
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Answer
As we know,
Force (f) = mass (m) x acceleration (a)
Given,
m = 100 g
Converting g to kg,
1000 g = 1 kg
100 g = () x 100 kg
100 g = 0.1 Kg
Hence, m = 0.1 Kg
As,
acceleration = slope of v-t graph =
=
Hence, a = 4 m s-2
Substituting the values in the formula above we get,
Hence, force acting on the particle = 0.4 N
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