Inertia is also called resistance to change. It means that, if the net external force is zero, t...

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Inertia is also called resistance to change. It means that, if the net external force is zero, then
(a) a body at rest continues to remain at rest
(b) a body in motion continues to move with a uniform velocity
(c) a body in rest starts moving with uniform velocity
(d) Both (a) and (b)
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