Posted by **Anonymous** on Sunday, February 27, 2011 at 12:57pm.

A car accelerates from 25km/hr to 55km/hr in 30 seconds. What is its acceleration?

- physics -
**drwls**, Sunday, February 27, 2011 at 1:10pm
Convert the speeds to m/s, take the difference, and divide by 30 s.

That will give you the answer in units of m/s^2, which is probably what they want.

25 km/hr = 25*1000/3600 = 6.94 m/s

You do the rest

## Answer this Question

## Related Questions

- Physics - A car accelerates at a constant rate from zero to 36.8 m/s in 10 ...
- physics help! - A car accelerates at a constant rate from zero to 32.6 m/s in 10...
- Physics, Please help!!! - A car accelerates at a constant rate from zero to 32.6...
- Physics - A car accelerates at a constant rate from zero to 25.6 m/s in 10 ...
- Physics - A car accelerates at a constant rate from zero to 23.3 m/s in 10 ...
- physics - A car accelerates at a constant rate from zero to 28.7 m/s in 10 ...
- physics - A car accelerates at a constant rate from zero to 20.5 m/s in 10 ...
- Physics - A car accelerates at a constant rate from zero to 25.6 m/s in 10 ...
- Physics - a car accelerates at a constant rate from zero to 26.7 m/s in 10 ...
- physics - A car accelerates at a constant rate from zero to 37.8 m/s in 10 ...

More Related Questions