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A block is given a velocity of 10 m/s an...

A block is given a velocity of 10 m/s and a force of 100 N in addition to friction force is also acting on the block. Find the retardation of the block?

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As there is relative motion
`therefore` kinetic friction will act to reduce this relative motion.
`f_(k)=muN=0.1 times 10 times 10=10N`
100 + 10 = 10a
`a=110/10=11m//s^(2)`
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