Calculating Vehicle Deceleration: Time & Distance

[ajayespinoza]

Homework Statement

A 4200lb vehicle is cruising down the highway at 65mph when the driver steps on the brake applying a braking force of 2,850lbs
Determine the time to stop, assuming uniform deceleration
Distance traveled during the deceleration
Velocity of the vehicle after 3.2 sec's of braking

Homework Equations

V = (p2-p1)/time

The Attempt at a Solution

I currently do not have any attempts at a solution other than
4200-2850 then divide that by 65?

 

[tiny-tim]

A 4200lb vehicle is cruising down the highway at 65mph when the driver steps on the brake applying a braking force of 2,850lbs
Determine the time to stop, assuming uniform deceleration
Distance traveled during the deceleration
Velocity of the vehicle after 3.2 sec's of braking

Hi ajayespinoza!

Hint: Start by using good ol' Newton's second law to find the deceleration.