Question

Free fall reaches 216km per hour. What is rate in meters per second.? How many meters fall during 20 seconds free fall?

Answer 1

Given,

Rate of free fall = 216 km/h

Solution,

km/h to m/s is converted as follows :

`216\ (km)/(h)=216* (1000\ m)/(3600\ s)\\\\=60\ m/s`

So, the rate of fall is 60 m/s.

If t = 20 s

Assume, initial velocity = 0

It will move under the action of gravity.

Using equation of motion,

`h=ut+(1)/(2)gt^2\\\\h=0+(1)/(2)* 10* 20^2\\\\h=2000\ m`

Hence, this is all for the solution.