A snowball is thrown with an initial x velocity of 7.5 m/s and an initial y velocity of 8.1 m/s .
The vertical motion of the ball is an uniformly accelerated motion, with constant acceleration a = -9.8m/s2(acceleration of gravity) is given by equation of motion v = u + at,
v (y direction) = 0m/s (since on reaching the maximum height final velocity will be zero
u( y direction) = 8.1m/s
a = -9.80665 m/s2
putting in given equation,
t = (v - u)/a
= 8.1/9.80665 (m/s) / (m/s2)
=0.825970 sec
= 0.83 sec (answer)
A snowball is thrown with an initial x velocity of 7.5 m/s and an initial y...
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