a stone is dropped from the age of the Roof .it passes a window 2metre in 0.1 second. how far is the room above the top of the window
shray62:
can any one give me answer
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v=d/t
v=2/0.1
v=20m/s
v^2-u^2=2gs
(20m/s)^2-(0m/s)^2= 2×9.8m/s^2×h
400m^2/s^2=19.6m/s^2×h
400m^2/s^2÷19.6m/s^2=h
400/19.6m=h
h=20.4m
v=2/0.1
v=20m/s
v^2-u^2=2gs
(20m/s)^2-(0m/s)^2= 2×9.8m/s^2×h
400m^2/s^2=19.6m/s^2×h
400m^2/s^2÷19.6m/s^2=h
400/19.6m=h
h=20.4m
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