# A stone is dropped from a bridge which is 230 m above the ground. a) What is the final speed of the stone before it hits the ground? b) How long is the stone in the air?

1 answer

###### Question:

A stone is dropped from a bridge which is 230 m above the ground.

a) What is the final speed of the stone before it hits the ground?

b) How long is the stone in the air?

a) What is the final speed of the stone before it hits the ground?

b) How long is the stone in the air?

## Answers

T= the square root of 2 times the distance divided by gravityT= 230 (2) / 9.8 m/s T= 47 seconds - answer for bmultiply 9.8 m/s^2 by 47 seconds9.8 x 47 = 460 m/s - answer for a hope this helps

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