A body having mass 20kg travels 100m distance ,its velocity decreases from 20m/s to 5m/s .Force in the body is......
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v2=u2+2as
5^2=20^2+2a×100
a=18.75m/s^2
F=ma
=20×18.75
=375N
Your answer is here_________--------»
Use work energy theoram ➡️➡️
Work done = change in KE
➡️➡️Force will be -37.5 N