# ¤While jumping for a bird your cat falls off your apartment building 45 meters high (but lands in a soft pile of marshmallows of course). ¤1) How long did it take to fall? ¤2) How fast is he going when he reaches the bottom?

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I dont remember which formulas were used for how long something falls and for speed.

I dont remember which formulas were used for how long something falls and for speed.

##### 1 Answer

Mar 16, 2017

A....pile of marshmallows....!

#### Explanation:

I would suppose the vertical (downwards) initial velocity of the cat equal to zero (

where

we get:

This will be the velocity of "impact" of the cat.

Next we can use:

where