Question

a cheetah,the fastest of all land animals over a short distance,accelerate from rest to 26 m/s .assuming that the acceleration is constant ,find the average speed of cheetah?

Answer 1

Let time be t and speed be v 
Speed when t=0 is 0m/s 
Speed when t=1s is 26m/s 

t1=0 
t2=1 

v1=0 
v2=26 

Avg. Speed = v2-v1/t2-t1 
=26-0/1-0 
=26 m/s

Answer 2

26 m/ s is the answers