Question

A 200 N box and a 200 kg box are pushed across the floor with an acceleration of 0.4m/s^2. What is the net force acting on the 200 N box, and the net force acting on the 200 kg box?

Answer 1

Concept - divide the weight of the first box by acceleration due to gravity to find the mass in kilogram. Then use Newton’s law of motion find the forces on both the boxes as shown below

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