A stone is dropped from the top of a 40 m high tower. Calculate its speed
after 2 s. Also find the speed with which the stone strikes the ground.
Answers
Explanation:
exercise 2
encircle the adjectives in the following paragraph:
I went to a small village the people of the village where simple it was a day of religion festival there was a happy crowd of men women and children in their best cloth in the fair there was a row of shop on both side of a broad passage there was also loud buting of drums shrill noise was produced by exercise 2
encircle the adjectives in the following paragraph:
I went to a small village the people of the village where simple it was a day of religion festival there was a happy crowd of men women and children in their best cloth in the fair there was a row of shop on both side of a broad passage there was also loud buting of drums shrill noise was produced by pipes
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Motion in a Straight Line
Problems Based on Free Fall
A stone is dropped from the...
PHYSICS
A stone is dropped from the top of a 40 m high tower. Calculate its speed after 2 s. Also find the speed with which the stone strikes the ground.
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ANSWER
Given that,
Height = 40 m
Time t =2 sec
We know that,
v=u+gt
v=0+9.8×2
v=19.6m/s
The speed of stone is 19.6 m/s
Now, the speed with which the stone strikes the ground
v
2
=u
2
+2gs
v
2
=0+2×9.8×40
v
2
=784
v=28m/s
Hence, the speed with which the stone strikes the ground is 28 m/s