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A constant retarding force of `50 N` is applied to a body of mass `20 kg` moving initially with a speed of `15 ms^(-1)`. How long time does the body take to

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in 11th Physics by (6.7k points)
A constant retarding force of `50 N` is applied to a body of mass `20 kg` moving initially with a speed of `15 ms^(-1)`. How long time does the body take to stop?
Options:
(a) `6 s` (b) `8 s` (c) `9 s` (d) `10 s`

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