[Solved] A ball is thrown down at 72 km h -1 speed from the top of a building. The building is 125 metres tall. The distance travelled before it reach the
Question: A ball is thrown down at 72 km h –1 speed from the top of a building. The building is 125 metres tall. The distance travelled before it reach the ground is asfollows,
s u 0 t
1
gt
2
2
where:
u
0
initialvelocity
m s–1
g acceleration due to gravity
10 m s–2
t time
s
- Find the time for the ball to drop to a fifth of the height of the building.
- Find the time for the ball to reach the ground.
Deliverable: Word Document 