Friday

November 21, 2014

November 21, 2014

Posted by **mitch** on Monday, September 4, 2006 at 11:55pm.

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 (60-0)/5.8 mi/sec^2 = 10.3 mi./hr /sec. We could also convert 60mi/hr to 88ft/sec, then avg. accel = (88-0)/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.

- physics -
**penny**, Saturday, September 21, 2013 at 2:00pm4.62 m/s squared

**Answer this Question**

**Related Questions**

Physics - a race car driver on a straight track starts the tryout from rest at t...

Physics - Car A is traveling at 18 m/s and car B at 25 m/s. Car A is 300m behind...

Physics - A driver of a car that is going 25 m/s suddenly notices a train ...

physics - a 1.10 x 10 cubed kg car accelerates from rest for a time period of 5....

physics - A car starts from rest accelerates with a constant acceleration of 1.5...

Physics - A car's initial velocity of 13.5 m/s accelerates at a rate of 1.9 m/s^...

physics - A 0.0820 kg pair of fuzzy dice is attached to the rearview mirror of a...

physics - A car accelerates from 80 to 90 , while a moped accelerates from 0 to ...

PHYSICS - A car is moving in the +x direction with the following position ...

Physics - A car is moving in the +x direction with the following position ...