Question

if the Mass of a body is increased by 20% and the momentum remains same then velocity decreases by what percent?

Answer 1

HEY BUDDY..!!!!

HERE'S UR ANSWER..

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Let momentom be M

we know..
M = m × v_________1

If mass is increased by 20%
m' = m + 0.2m
m' + 1.2m

By eq 1

v = M / m ____________2

also

v' = M / m'____________3

By comparing eq 1 and eq 2

v / v' = m' / m

1.2m / m = v / v'

1.2 v' = v



HOPE HELPED...

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