Question

1 A force of 5kg wt. acts on a body for 10 seconds. If the velocity varies at 5 m/sec due to force, the
mass of the body is -
(1) 5 kg
(2) 9.8 kg
(3) 98 kg
(4) 980 kg​

Answer 1

Answer:

As 1 kg.wt = 9.8N

So,5 kg.wg = 49N

Formula- f=mv/t

49= m.5/10

m = 49×10/5

m =98 kg

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