A child on the skateboard is moving at the speed of 2 ms. After a forc – InterviewSolution

1.	A child on the skateboard is moving at the speed of 2 ms. After a force acts on him, his speed becomes 3 ms. Calculate the work done by the external force on the child. Given the weight of the child is 20 kg.
Answer» A child on the skateboard is moving at the speed of 2 $\frac{m}{s}$ . After a force acts on him, his speed becomes 3 $\frac{m}{s}$ . Calculate the work done by the external force on the child. Given the weight of the child is 20 kg.

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