Question

a stone is dropped from the roof of a building it takes 4s to reach the ground find the height of the building (g=9.8s-2​

Answer 1

Answer:

here,u=0

t=4; g=-9.8ms-2

h=ut+1/2gt2

h=1/2×9.8×16

=78.4m

thus height of building= 78.4m

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