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A body of mass 5 kg …

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A body of mass 5 kg initially at rest is subjected to a force of 20N . What is the kinetic energy acquired by the body at the end of 10s?

Posted by Arun Prashana 2 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Parii ☁ 2 years, 8 months ago

F = ma, a= v-u/t, 20= 5 × v-O/10, 40m/s = v, K. E. = 1/2 × 5× 40² = 4000J

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