Question

pls solve my doubts with full explanation i will mark him brainliest​

Answer 1

Answer:

18. To find the height of tower, we need to calculate the distance travelled by the stone to reach the ground.

Let the distance traveled be s

s = ut + 1/2 at^2

Here,

u is the initial velocity = 0

t is the time taken = 4 secs

a is the acceleration due to gravity = 10 m / s^2

s = 0 + 1/2 x 10 * 16

s = 80 m

So the answer is 80 m

19.(i) It can be solved by applying the above concept. Try it yourself..

(ii) Divide the distance you get in the above question by the speed of sound that is 330 m/s

You will get your answer...

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