Question

For each of the following situations, state whether work is done. a.Some weights are held stationary 10 cm above the ground. b.Your science teacher is doing a scientific demonstration that involves moving some trolleys. c.A moving car on a rough road. d.A child reading a book

Answer 1

Answer:

a . No work done (as s= 0)

b. work is done

c. work done

d. no work done ( s =0)

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