Question

1) whenever a body is thrown up with a certain velocity, the upward motion is oppost by gravitational pull of the earth and also by resistance of air.
Therefore, of the body goes on decreasing. when this velocity becomes 0, the body cannot rise further. it has attained . what is called 'maximum height'. from this height, the body begins to fall downwords under the action of gravity.

read the above passage and answer the following....

i) At the highest point, what are the velocity and acceleration of the body ?
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Answer 1

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Answer 2

Answer:

At the highest Point, The velocity and acceleration of the body is equal to Zero "0".

Explanation:

Now lets understand this in simple terms:-

If the body is tossed upwards, its height will increase. As the body is moving against gravity, so its velocity will decrease.

The moment the body reaches its maximum height:-

(1).   Its height is maximum, but the velocity = 0.

(2).  As acceleration is the rate of change of velocity, and its velocity is Zero so the rate of change of velocity will also be = 0.

(at maximum height both initial and final velocity will be zero).

Thus the rate of change of velocity ( difference between initial and final velocity is zero).

so at maximum height:-

Velocity = 0.

Acceleration = 0 m/s.