A stone falls from a building and reaches the ground 2.5 second later. How high is the building. (g=9.8m/s2)
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Answered by
1
The height of the building will be 24.5 m.
We can find this by putting the values in the speed formula that is speed is equal to distance upon time.
We can find this by putting the values in the speed formula that is speed is equal to distance upon time.
rehan778866khap56hzs:
speed =distance upon time is used when acceleration is zero...
but in this que. free fall should be considerd so acceleration =g
Answered by
0
Time period of free fall= under root 2*Height/g
so ... Height of building =31.25m
so ... Height of building =31.25m
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