Question on car speed and distance.

[wolfgangjt]

Homework Statement

A car moving at constant acceleration covers the distance between two points 58m apart in 6.2 seconds. its speed as it passes the second point is 54 km/hr. what is the speed at the first point? at what prior distance from the first point was the car at rest?

Homework Equations

Conversions.
58m/6.2s =9.36m/s 9.36 m/s converts to .5616km/hr. 54 km/hr * .5616km/hr = 30.33 km/hr

The Attempt at a Solution

The speed at the first point is 30.33 KM/Hr. Not sure how to arrive at the second part.

 

[pgardn]

Homework Statement

A car moving at constant acceleration covers the distance between two points 58m apart in 6.2 seconds. its speed as it passes the second point is 54 km/hr. what is the speed at the first point? at what prior distance from the first point was the car at rest?

Homework Equations

Conversions.
58m/6.2s =9.36m/s 9.36 m/s converts to .5616km/hr. 54 km/hr * .5616km/hr = 30.33 km/hr

The Attempt at a Solution

The speed at the first point is 30.33 KM/Hr. Not sure how to arrive at the second part.

What kinematic equations are you using?

And what have you been given in the question?