A ball is projected upwards from the foot of a tower. The ball crosses the top of the tower twice after an interval of 6s and the ball reaches the ground after 12s. The height of the tower is (g=10m/s2):
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I get up at 6 a.m. in the morning.Blood, fluid that transports oxygen and nutrients to the cells and carries away carbon dioxide and other waste products. Technically, blood is a transport liquid pumped by the heart (or an equivalent structure) to all parts of the body, after which it is returned to the heart to repeat the process.
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Answer:
v=u+at
at t=6 v=0
0=u+(-10m/s²)(6sec)
u=60m/sec
it reaches tower in 3sec
thus
s=ut+(1/2)at²
=(60)(3)+(1/2)(-10)(3)²
=180-45
=135m
height of the tower is 135meters
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