Question

Take a look at the figure. The distance h a body will move in free fall is expressed by the formula shown. If g = 980 centimeters per second2 and t = 20 seconds, what is the distance? A. 368,000 centimeters B. 9,800 centimeters C. 49,000 centimeters D. 196,000 centimeters

Answer 1

I'm not sure what D says but if it is 196000 cm then that is the answer.

Answer 2

Option D 196000 cm is the answer.

Explanation:

By the given formula we have to calculate the distance h a body will move in free fall.

`h=(1)/(2)gt^(2)`

Here h = height, covered in t seconds

g = 980 cm / second

and t = 20 seconds

So by putting these values in the formula

h =
`(1)/(2)` (980) (20)²

=
`(1)/(2)` × 400 × 980

= 200 × 980

= 196000 cm

Option D 196000 cm is the answer.