# physics

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A pelican flying along a horizontal path drops a fish from a height of 5.4m. The fish travels 8.0 m horizontally before it hits the water below. What was the pelican's speed?

• physics -

Calculate the time, t sec., it takes to free-fall from rest over 5.4 m.
You can use:
S=ut+(1/2)gt²
where S=distance, u=initial vertical speed=0, and g=acceleration due to gravity.
Divide 8 m/t sec. to get the horizontal speed.

• physics -

The pelican was going 7.6 m/s

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