a sprinter runs with an average acceleration of 4.5 m/s squared . what is the sprinters speed at 5.0 seconds after leaving the starting block??

Question

adll23 · Answer

the sprinter starts at 0, after 1 sec he is moving at 4.5 m/s, after 2 seconds, at 9 m/s

haseeb96 · Answer

As we know the formula of Acceleration
Acceleration = Speed / time
got it ?

haseeb96 · Answer

acceleration is 4.5 
speed is suppose x 
while time is  5 sec
4.5 x 5 = x 
x = 22.5 m 
check is this answer present in your answer key ?