The gravitational potential energy of an object is 81 J at a height of 7.34 m with mass of 1.13 kg. When it is released what is the momentum and...

If the gravitational potential energy of an object is 81 J at a
height of 7.34 m with mass of 1.13 kg, what is the momentum and impulse of the
object?

fist we need to plan the
strategies:

Ep=mgh

Ep=81J

let

Ep=Ek
,as we know that we need V to find momentum and
impulse

81=1/2mv^2

162=(1.13)V^2

143.36=V^2

11.97=V

hence,the
velocity is 11.97m/s

Momentum is product of mass and
velocity

then,

momentum=1.13(11.97)

=1352.61kg/ms^-1

Impulse
is change in momentum,

then,

Ft=mv-mu
,m=1.13 u=0
v=11.97

=1.13(11.97)-1.13(0)

=1352.61kg/ms^-1

it
is solved ..............................................................pop ye ye
ye