Starting fom rest, a car accelerates at a constant rate, reaching 88 km/h in 12 s. (a) what is its acceleration? (b) how far does it go in this time?

(A)  

(B) s = 146.664 m

Explanation:

We have given car starts from the rest so initial velocity u = 0 m /sec

Final velocity v = 88 km/hr

We know that 1 km = 1000 m

And 1 hour = 3600 sec

So

Time is given t = 12 sec

(A) From first equation of motion v = u+at

So

So acceleration of the car will be

(b) From third equation of motion

So

s = 146.664 m

Distance traveled by the car in this interval will be 146.664 m

answer(20) psi;