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A rock is at a height of 21.9 m above the ground and is thrown at...

A rock is at a height of 21.9 m above the ground and is thrown at 12.2 degrees below the horizontal. It hits the ground 49.5m horizontal from where it was thrown.

A) what is the initial velocity of the rock? B) what is the final velocity of the rock?

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Answer #1

Concept: use the equations of kinematics in horizontal and vertical directions separately and we get two equations with initial velocity and time as variables. Solve them to find the values as shown below ズ in verical direchov, tacing down a> I n Positive 2***************************************************************************************************
This concludes the answers. If there is any mistake or omission, let me know immediately and I will fix it....

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