in the process.
4. Certain force acting on a 20 kg mass changes its velocity from
5 ms' to 2 m s. Calculate the work done by the force.
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4
Answer:
W=-210
Explanation:
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Answered by
1
Explanation:
given:. mass =20
velocity 1= 5ms'
velocity 2= 2ms'
work done= ?
force= mg ,, 20x. 10
=200Newton
Work done1= force x displacement
= 200 x 5
=1000 joule
Work done2= force x displacement
=200 x 2
=400 joule
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