Calculate the momentum of an object that has fallen freely from rest for 15 s and has a mass of 3.4kg.

Velocity, v=u+at where u= initial velocity=0 as fallen freely, a= acceleration due to gravity, t=15s
v=0+9.81*15
=147.15 m/s

Momentum = mass*velocity = 3.4*147.15 =500 kg-m/s

First, find the velocity of the object after it has fallen.

Using v = v₀ + at, we see that the velocity of the ball after 15 seconds is:
v = 0.0 m/s + (-9.8 m/s^2)(15 s) = -147 m/s.
(This is neglecting air friction.)

Since p = mv, the momentum of the object is:
p = mv
= (3.4 kg)(-147 m/s)
= -540 kg*m/s, to 2 s.f.

I hope this helps!

If its fallin downwards then
F = 3.4 * 9.8 =
t = 15s

Impulse = F.t

impulse = change in momentum
F.t = 0 - p its falling from rest
p = F.t