Question

# A cheetah can start from rest and attain the velocity 72km/h in 2 seconds. Calculate the acceleration of cheetah

Answer 1

`10 \:` m/s ^2

Step-by-step explanation:

Solution,

When a certain object comes in motion from rest, in the case, initial velocity = 0 m/s

Initial velocity ( u ) = 0 m/s

Final velocity ( v ) = 72 km/h ( Given)

We have to convert 72 km /h in m/s

`72 \: km \: per \: hour`

`= 72 * (1000)/(60 * 60)`

`= 20` m/s

Final velocity ( v ) = 20 m/s

Time taken ( t ) = 2 seconds

Acceleration (a) = ?

Now,

we have,

`a = (v - u)/(t)`

`a = (20 - 0)/(2)`

`a = (20)/(2)`

`a = 10` m/s ^2

Hope this helps...

Good luck on your assignment..