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Question:

Can you solve this Physics problem?

A college rower can easily push a small car along a flat road, but she cannot lift the car in the air. Since the mass of the car is constant, how can you explain this discrepancy?

Answer:

It is the difference between lifting the car's weight (Force) and accelerating its mass. Weight acts at right angle to the force (push) to roll the car horizontally We need only accelerate the car's mass to move it. Force at right angle does not matter, in this case.

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