Question

A dragster accelerates at 9m/s^2 from a stationary start for 7 seconds. How far does it travel in 7 seconds?

Answer 1

dx= (initial velocity) (time) + 1/2 ( acceleration) (time^2)

initial velocity= 0
time= 7 secs
acceleration= 9m/s^2

dx= (0) ( 7 secs) + 1/2 (9 m/s^2) (7^2)
= 0+ 1/2 (9 m/s^2) (49)
= 1/2 (441)
= 220.5 m

Lol. Not sure.

Answer 2

That's it. Thanks man.