We have that for the Question it can be said that The maximum height reached by the first <em>object</em> will be 100 times that of the other.
From the question we are told
One object is thrown vertically upward with an initial velocity of 100 m/s and another object with an initial velocity of 10 m/s. The maximum height reached by the first object will be
that of the other.
a. 10,000 times
b. none of these
<em>c. </em><em>1000 times</em>
d. 100 times
<em>e.</em><em> 10 times</em>
Generally the equation for the velocity is mathematically given as


Therefore
The maximum height reached by the first <em>object</em> will be 100 times that of the other.

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By the help of newtons law of gravitation we can derive keplers third law of planetary motion.
Answer:
The Force exerted on the student by crate will be 100 N.
Explanation:
As per the given Question student is trying to push the crate in right direction with the force of 100N.
And we know that, Newton's third law states that every action has equal and opposite reaction.
So from the Newton's 3rd law of motion it is very clear the student must be experiencing the same amount of force which he is applying.
The answer to your question is -4