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CBSE Class 9 Answered

(a)Mention any two effects of force. (b)A body of mass 60 kg has a momentum of 300 kg m/s. Calculate its velocity.
Asked by Topperlearning User | 27 Jun, 2016, 02:39: PM
answered-by-expert Expert Answer

(a) Effects of force:

    (i) Force may move a body at rest.

    (ii) Force can change the speed of a body.

 

(b)m = 60kg

    p = mv = 300kgm/s

    v = p/m = 300/60 = 5 m/s.

Answered by | 27 Jun, 2016, 04:39: PM

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