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## Homework Statement

A boy throws a stone from the top of the building that is 45 m high. It lands 64 m away. Find the following:

a) time of flight

b) initial speed

c) speed and angle with respect to the horizontal of the velocity vector at impact

2a) throwing the stone with more force (1.5 times harder) multiplies the time it takes to reach the ground by?

2b) The horizontal component of the velocity is multiplied by what factor?

2c)how many times further does the stone land away from the building

## Homework Equations

d=1/2gt^2

Xf=Xi+Vot

## The Attempt at a Solution

a) I figured out that since it take 3.03 seconds to drop 45m then it must also take 3.03 for it to land when being thrown horizontally. solved using d=1/2gt^2

b) knowing time: 64=Vot => 64/3.03=Vo ----> Vo = 21.13m/s

everything else I can't seem to figure out