A body of mass 5kg starts from the origi...

A body of mass 5kg starts from the origin with an initial velocity of `barU= (30i+40j)m//s`. A constant force of `F= (-hati - 5 hatj)N` acts on the body . Find the time in which they- component of the velocity becomes zero .

5 s

20 s

40 s

80 s

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