A stone is dropped from a height of 80 m. Find
the time taken by stone to cover this distance
and velocity with which it hit the ground.
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Answer:
time is 4 seconds velocity is 40m/s
Explanation:
from 2nd equation of motion
1/2gt^2= 80
5t^2 =80
t^2=16
t=4
from 1st equation
v=gt
v= 10*4=40 m/s
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