A 900 kg car speeds up from 30 M/S to 80 m/s how much momentum did the car gain?
1 answer:
The change in momentum of the car is 45,000 kg m/s
Explanation:
The change in momentum of an object is given by:
where
m is the mass of the object
u is its initial velocity
v is its final velocity
For the car in this problem, we have
m = 900 kg
u = 30 m/s
v = 80 m/s
Therefore, the change in momentum is:
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Here's the solution,
gravitational potential energy :
=》
where,
m = mass
g = acceleration due to gravity
h = height
So,
=》
=》
So, potential energy = 24.01 joules