Question

an object is thrown vertically upwards and rises to a height of 45 meter.calculate the velocity with which the object was thrown upwards.[take , g=10m/s square

Answer 1

Answer:

the initial velocity will be u=30 m/s

by applying v²=u²+2gs

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Answer 2

Explanation:

Hope this Answer helps you

Given, Max height = 45 m, gravitational acceleration of Earth = 9.8 m / sec sq, Final velocity (v) when ball reaches the max height = 0 m/s. Therefore, the time after which the velocity of the ball becomes half of the velocity of projection is 1.51 seconds.

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