a ball is thrown downward from the top of a 40 m high building at a velocity of 5 meter per second. find the time it takes to reach the ground
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Answer:
t=16 s
Explanation:
Initial Velocity (Vi)= 5m/s
distance (d)= 40m
Final Velocity = 0m/s
t=?
d= 1/2 (Vf+Vi)t
40m= 1/2 (0m/s + 5 m/s) t
40m= (2.5m/s)t
*divide both sides with 2.5 m/s
t=16s
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