Question

A stone is thrown vertically upwards with a velocity of 40 m/s returns back. Tacking g = 10 m/s 2 , calculate the maximum height reached byu the stone and the total distance travelled by the stone.

Answer 1

total distance will be 160m and the height attained will be 80m.

Answer 2

_/\_Hello mate__here is your answer--

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u = 40 m/s

v = 0 m/s

s = Height of the stone

g = −10 ms−2 ( upward direction)

Let h be the maximum height attained by the stone.

Using equation of motion under gravity

v^2 − u^2 = 2gs

⇒0^2 − 40^2 = 2(−10)ℎ

⇒ ℎ =40×40/ 20 = 80

Therefore, total distance covered by the stone during its upward and downward journey

= 80 + 80 = 160 m

Net displacement during its upward and downward journey

= 80 + (−80) = 0.

I hope, this will help you.☺

Thank you______❤

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