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Answer to Question #80908 in Physics for Jake
Question #80908
If a marble is dropped from a bridge and reached the water at 2 seconds.
What is its speed before it reaches the water and the height of the bridge?
What is its speed before it reaches the water and the height of the bridge?
Expert's answer
The speed of a marble before it reaches the water
v_f=v_i+gt=0+9.8×2=19.6 m/s
The height of the bridge
h=v_i t+(gt^2)/2=0×2+(9.8×2^2)/2=19.6 m
v_f=v_i+gt=0+9.8×2=19.6 m/s
The height of the bridge
h=v_i t+(gt^2)/2=0×2+(9.8×2^2)/2=19.6 m
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