Question

In which object more force has to be applied to move in between two objects of mass 20 kg and other of mass 2 kg placing at rest at the same place? Why? YAY​

Answer 1

Answer:

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Explanation:

Here the limiting friction force =μmg=0.25×2×10=5N

Thus the applied force is less than the friction force. So there will not have relative motion in between trolley and mass.

therefore, 2=(20+2)a⇒a=0.09m/s2

The friction force between mass and surface of trolley =20a=20×0.09=1.8N