Answer:
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The amount of force applied by individual man to balance the force at the right is 73.2 N.
<h3>Amount of force applied by individual man</h3>
The amount of force applied by individual man to balance the force at the right is calculated as follows;

Thus, the amount of force applied by individual man to balance the force at the right is 73.2 N.
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Answer:
2 seconds
Explanation:
The function of height is given in form of time. For maximum height, we need to use the concept of maxima and minima of differentiation.

Differentiate with respect to t on both the sides, we get

For maxima and minima, put the value of dh / dt is equal to zero. we get
- 32 t + 64 = 0
t = 2 second
Thus, the arrow reaches at maximum height after 2 seconds.