physics
posted by mitch .
car accelerates from 0 to 60 mi/hr in a time of 5.8 secs.
a. What is the acceleration of car in m/s squared?
need help setting up the problem, thanks
acceleration
= (speed change)/(time interval)
To get the answer in m/s^2, the speed change of 60 mi/hr must first be converted to m/s.
60 mi/hr = (88 ft/s)*(0.3048 m/ft) = 26.8 m/s
Divide that by 5.8 s for the acceleration in m/s^2
You first need to convert the 60 mi/hr to meters/sec. Then the final velocity  initial velocity / time period will give the average acceleration in that time period.
If the answer was in mi/hr then we'd have (600)/5.8 mi/sec^2 = 10.3 mi./hr /sec. We could also convert 60mi/hr to 88ft/sec, then avg. accel = (880)/5.8 ft/sec^2 = 15.2 ft/sec^2 would be the average acceleration of the car in going from 0 to 60 mi/hr in that time span. Keep in mind that this is not m/sec^2 as the problem requires.

4.62 m/s squared
Respond to this Question
Similar Questions

Engineering Physics
A car and a train move together along straight, parallel paths with the same constant cruising speed v(initial). At t=0 the car driver notices a red light ahead and slows down with constant acceleration a(initial). Just as the car … 
physics
A test car starts out from rest on a horizontal circular track of 80m radius and increases it's speed at a uniform rate to reach 27.78 m/s in 10s. Find the magnitude of the total acceleration of the car 8s after the start. Ok so I … 
Physics
A car starting from rest, accelerates at 5.0 m/s^2 fpr an unknown time interval. If the car travels 250 m in the acceleration period, what is the time interval? 
physics
In a test run, a certain car accelerates uniformly from zero to 17 m/s in 2.95s. a.) what is the magnitude of the car's acceleration? 
physics
Two cars A & B are coming closer to one another with speed 36 km/h and 72 km/h Separated by a distance 1500 m calculate : 1 . time interval after which two car meet . 2 . if acceleration of car A is 2m/s2 then calculate time interval … 
Physics
A car starts from rest and accelerates at a rate of 1 m/s^2 until it reaches a velocity of 7 m/s. It then travels at a constant velocity for the next 15 seconds. The driver then applies the brake, bringing the car to stop. The brakes … 
physics
Starting from rest, a car accelerates down a straight road with constant acceleration a for a time t, then the direction of the acceleration is reversed, (i.e., it is a), and the car comes to a stop in an additional time t, … 
Physics
Consider two toy cars. Car A starts from rest and speeds up with constant acceleration for a time delta t until it reached a speed of v and then continues to travel at this speed. At the moment car A reaches its maximum speed, car … 
Physics
I don't know if my answers are right. D: 1)Why is a time interval always positive? 
physics
A car moves from rest with a constant acceleration of 4m/s squared for 5s .IT then continues with the speed attained for10s and then accelerates at 2m/s squared for 10s.A/ SKETCH A SPEED TIME GRAPH FOR THE WHOLE MOTION GIVING YOUR …