Question

The average height of an apple tree is 4.00 meters. How long would it take an apple falling from that height to reach the ground? Given: g = -9.8 meters/second2

Answer 1

(9.8m/s) divided by 4m. the m's cancel out leaving you with s so 2.45s

Answer 2

The time is 0.90 sec.

Step-by-step explanation:

Given that,

Height = 4.00 m

We need to calculate the time

Using equation of motion

`s = ut+(1)/(2)gt^2`

Where, s = height

g = acceleration due to gravity

t = time

Put the value into the formula

`4.00=0+(1)/(2)*9.8* t^2`

`t^2=(4.00*2)/(9.8)`

`t=\sqrt{(4.00*2)/(9.8)}`

`t=0.90\ sec`

Hence, The time is 0.90 sec.