Question

During a free fall Swati was accelerating at -9.8m/s^2. After 120 seconds how far did she travel? Use the formula =1/2 * t^2 to solve your answer.

Answer 1

She traveled 70560 m.

Explanation:

Given :

Acceleration (g) =
`-9.8m/s^(2)`

Time : 120 seconds .

To Find : Distance traveled

Solution:

Since we are given that there is a free fall .

So, we will use the formula:
`d=(1)/(2) gt^(2)`

Now put the given values in the formula :

⇒
`d=(1)/(2)*(-9.8)*(120)^(2)`

⇒
`d=(1)/(2)*(-9.8)*14400`

⇒
`d=(-141120)/(2)`

⇒
`d=-70560`

Negative sign shows the direction only.

Hence she traveled 70560 m.