6 students sitting on a drop tower are lifted 20 m above the ground and released to free fall down the tower the total mass of the six students is 400kg A) determine the normal force that seats exerted on the students during free fall B) as the drop tower approaches the bottom it is slowing down at 5.50 m/s/s determine the normal force that the seat exerted C) determine the normal force that the students exerted on the seats

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Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”