Complete Question
The diagram for this question is showed on the first uploaded image (reference homework solutions )
Answer:
The velocity at the bottom is 
Explanation:
From the question we are told that
The total distance traveled is 
The mass of the block is 
The height of the block from the ground is h = 0.60 m
According the law of energy

Where PE is the potential energy which is mathematically represented as

substituting values


So
KE is the kinetic energy at the bottom which is mathematically represented as

So

substituting values
=> 
=> 
=> 
Answer:
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Answer:
24.325 kg m/s
Explanation:
Initial momentum, pi = 18 kg m/s
F = < -4, 12, 0>
t = 0.5 s
Let the final momentum is pf.
The magnitude of force is

According to the Newton's second law, the rate of change of momentum is equal to the force.


pf - 18 = 6.325
pf = 24.325 kg m/s
Thus, the momentum of body after 0.5 s is 24.325 kg m/s.