Explanation:
We use the Theorem of conservation of mechanical energy for finding the velocity when it strikes the ground:
Ei = Ef
Ki + Ui = Kf + Uf
Ui = Kf
m g h = 1/2 m v^2
v = sqrt(2gh)
So the momentum will be:
p = mv = m * sqrt(2gh)
Answer:
45
Explanation:
because the equation for speed is distance divided by time! hope that helps gave a nice day!
Explanation:
Acceleration is defined as the rate of change of velocity with time. In most acceleration problems:
the given parameters will be;
Initial velocity
final velocity
time.
Using the equation below:
Acceleration = 
one can solve for acceleration. The unit is usually in m/s²
Learn more:
velocity brainly.com/question/10962624
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Moment=Force*distance from the pivot.
Moment 1=500N*2m=1000Nm
Moment 2=1000N*1m=1000Nm
Moment 1=Moment 2