The bull bends forward and pushes the ground with its feet to make the cart move. In this case, we could see that the forward reaction to the backward push of the bull is greater than the opposing frictional forces of the wheels the cart moves. This is an example of Newton’s —.

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First law

Second law

Third law

None of the above

answer is C.

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Detailed Solution

This is an example of Newton’s third law.
According to Newton’s third law of motion, the bull exerts some force on the cart, and the cart exerts an equal and opposite force on the bull. So, initially, it seems that the action and reaction forces, being equal and opposite, fade out; hence, there is no movement in the cart. But it should be noted that it is only the force here that determines whether the cart will move or not and that the force exerted by the cart on the bull affects the bull alone. Thus, here if the bull is able to apply sufficient force to overcome the frictional forces present, the cart will move. So, to make the cart move, the bull bends forward and pushes the ground with its feet. When the forward reaction to the backward push of the bull is greater than the opposing frictional forces of the wheels, the cart moves.

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