2.) A frictionless ramp is tilted at an angle of 37 degrees. A 4.2kg box is released from rest at the top of the ramp and allowed to accelerate downward. a. Draw a picture of the situation. b. Draw a free body diagram. c. Determine the component of gravity necessary and use the appropriate technique (inertial or forced motion) to determine the Normal Force on the box. d. Determine the component of gravity necessary and use the appropriate technique (inertial or forced motion) to determine the acceleration on the box after release.

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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?”