Saturday

April 18, 2015

April 18, 2015

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 - Consider two toy cars. Car A starts from rest and speeds up with ...

physics - In a test run, a certain car accelerates uniformly from zero to 17 m/s...

physics - A car moves from rest with a constant acceleration of 4m/s squared for...

physics - Starting from rest, a car accelerates down a straight road with ...

Physics - A car starts from rest and accelerates at a rate of 1 m/s^2 until it ...

physics - a car travels on a straight road. a) starting from rest, the car is ...

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

Physics - Need Help with physics! Two cars drive on a straight highway. At time ...

Physics - Consider two toy cars. Car A starts from rest and speeds up with ...

Physics - Consider two toy cars. Car A starts from rest and speeds up with ...