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Question

A ball is thrown upwards with a velocity of 10 ms1. Find the maximum height reached by the ball.

A
13 m
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B
5 m
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C
15 m
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D
16 m
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Solution

The correct option is B 5 m
Given:
Initial velocity, u=10 ms1

Acceleration due to gravity is: g10 m/s2
Upward direction is taken as positive.

At the highest point, velocity is zero as the ball reverses it's direction of motion.
v=0 ms1.

Let the maximum height be H.

Using third equation of motion,
v2=u2+2as​​
02=102+2×(10)×H
H=5 m

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