A car is traveling at 50 mi/h when the brakes are fully applied, producing a constant deceleration of 32 ft/s2. What is the distance covered before the car comes to a stop? (Round your answer to one decimal place.)?

1 Answer
Oct 21, 2016

Answer:

#84.0ft#, rounded to one decimal place

Explanation:

Applicable Kinematic equation is
#v^2-u^2=2as#
where #v, u, a and s# are final velocity, initial velocity, deceleration and distance covered respectively.

Now, #50mphxx(1760xx3)/3600=73.3333fps#
Inserting given and calculated values

#0^2-73.3333^2=2(-32)s#
#=>s=73.3333^2/64#
#s=84.0ft#, rounded to one decimal place