A stone is thrown vertically in upward direction with a velocity of 20 m/s. What will be the height attained by the stone and how much time will it take to reach there ?
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Answer:
time taken is 2 sec and height attained is 20m
Explanation:
final velocity (v) = 0m/s
intital velocity (u) = 20m/s
acceleration due to gravity = -10 m/s
from v=u+at
0=20-10t
t=2sec
applying S=ut+1/2at^2
20×2+1/2×(-10)×2×2
40+(-5×4)
=20m
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