Modifying a Car: 0-47 mph Distance Covered

[99precision]

First, I am not a student. I'm looking to do some modifications to a car and I'm not sure what to do.

Homework Statement

a 2.0 L, 4 cylinder engine w/ 146 hp

curb weight = 1418 kg

0-60 mph time of 8.6 s

0.25 mile time of 16.7 s at a top speed of 81.8 mph

What distance (miles) would be covered going from 0-47 mph?

Homework Equations

1 hour = 3600 s
60 mph = 0.0167 miles/s
47 mph = 0.013056 miles/s

The Attempt at a Solution

where do I go from here?

 

[Kurdt]

Assuming constant acceleration you will want to use the 1D kinematic equations.

https://www.physicsforums.com/showpost.php?p=905663&postcount=2

It might be handy to convert speed to metres per second.

A car however, does not undergo constant acceleration.