If a stone dropped from the top of the tower travels half of the height of the tower during last second of it's fall the time of fall is ??
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let the height be 100 m
last one second distance =50m
seconds equation of motion
we get
50=u + 1/2*10*1
u=45 m/s
now use first equation of motion
45=gt
t=4.5 seconds
total time = 5.5 seconds
last one second distance =50m
seconds equation of motion
we get
50=u + 1/2*10*1
u=45 m/s
now use first equation of motion
45=gt
t=4.5 seconds
total time = 5.5 seconds
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