please show work so I can understand how to get the answer A trolley starts from

Question

please show work so I can understand how to get the answer

A trolley starts from rest and runs down a sloping track section onto a second level section as shown. Friction is negligible. Which velocity-time graph below best represents the trolleys motion on both sections? Justify your answer. Let and Find C such that An object is moving with a constant velocity. Which statement(s) MUST be true? Two bodies P and Q on a smooth horizontal surface are connected by a light cord. The mass of P is greater than that of Q. A horizontal force is applied to Q as shown, accelerating the bodies to the right. The magnitude of the force exerted by the connecting cord on body P will be

Explanation / Answer

option D is correct

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