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A block of mass m is kept on a platform which starts from rest with constant acceleration g/2 upward, as shown in fig. work done normal reaction on block in time t is :

        

(a)

0

(b)

(c)

(d)


Question ID - 50234 | Top Ranker Answer | SaraNextGen

A block of mass m is kept on a platform which starts from rest with constant acceleration g/2 upward, as shown in fig. work done normal reaction on block in time t is :

        

(a)

0

(b)

(c)

(d)

1 Answer - 5876 Votes

3537

Answer Key : (b) -

N−mg =

Now, work done W= =

⇒ W =



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