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Karnataka Board PUCPUC Science Class 11

A stone is thrown vertically upward with a speed of 28 m/s. change if the initial speed is more than 28 m/s such as 40 m/s or 80 m/s ?

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Question

A stone is thrown vertically upward with a speed of 28 m/s. change if the initial speed is more than 28 m/s such as 40 m/s or 80 m/s ?

Short/Brief Note
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Solution

Given:
Initial velocity with which the stone is thrown vertically upwards, u = 28 m/s
When the stone reaches the ground, its final velocity (v) is 0.
Also,
a = g = −9.8 m/s2  (Acceleration due to gravity)

will not change, as after one second, the velocity becomes zero for any initial velocity and acceleration (a = − 9.8 m/s2) remains the same. For any initial velocity more than 28 m/s, only the maximum height increases.

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Chapter 3: Rest and Motion: Kinematics - Exercise [Page 52]

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HC Verma Concepts of Physics Volume 1 and 2 [English]
Chapter 3 Rest and Motion: Kinematics
Exercise | Q 25.3 | Page 52

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