A ball is thrown vertically upwards with a velocity of 20 m/s from the top of a multistorey building the height of the point from where the ball is thrown is 25.0m from the ground
a.how high will the ball rise
b.how long will it be before the ball hits the ground take g = 10 ms
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20^2=2×10×s
s=20×20/20=20m up from point of throw
second part
-25=20t - 1/2 ×10 t^2
t^2-4t-5=0
solve this for t u will get two values then take the positive value
s=20×20/20=20m up from point of throw
second part
-25=20t - 1/2 ×10 t^2
t^2-4t-5=0
solve this for t u will get two values then take the positive value
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