a block of 2kg is moving on a straight line the velocity of block changes from 4 m/s to 8 m/s in 2 seconds. the work done by the net force acting on the block in 2 seconds is ...
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Answer:
4joule
Explanation:
Answered by
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Explanation:
Mass=2kh
Initial velocity=4m/s
final velocity=8m/s
Time=2 seconds
Work done is Force × displacement
Force =MA
=2(V-U)/Time
2(1)=2m/s^2
workdone =∆Ke/Time
=mv^2/2
2*8/2/2
16 Joules
Answer is 16 Joules
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