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A ball is thrown vertically upward calculate

a: the total time to which it rises ( velocity upwards 49m/s)
b: the total time to which it take to return to earth


The initial upward velocity is given as 49 m/s
the final velocity at maximum height will be zero.
v = u + at
u = 49 m/s
a = -9.8 m/s^2

0= 49 - 9.8t
t = 49/9.8 = 5 seconds.
it takes 5 seconds to rise.

and similarly while falling, it takes 5 seconds.
so total time is 10seconds
0 0 0
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