Q21 of 46 Page 247

A cart driver prods his horse to move forward. The horse refuses to budge and explains:

“According to Newton’s III Law, I am pulling the cart, with a certain force and the cart, in turn pulls me back with an equal amount of force. As they are equal in magnitude and act in opposite directions, they cancel each other.”


Do you agree with the explanation given by the horse? Support your answer with proper reasons.

No, the horse exerts the reaction using its feet on the ground. It pushes the ground backwards and so the cart moves forward. The horse is just being lazy and stubborn!


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