Posted by **Anonymous** on Wednesday, September 15, 2010 at 10:57pm.

A 3.00kg block starts from rest at the top of a 30.0 degree incline and accerlates uniformly down the incline moving 2.00 m in 1.50 s. find the magnitude of the accerlation of the block

- physics -
**TutorCat**, Wednesday, September 15, 2010 at 11:58pm
The distance = (1/2)*(acceleration)*(time)^2 + (initial velocity)*(time)

distance= 2m

find acceleration.

- physics -
**drwls**, Thursday, September 16, 2010 at 12:01am
They have provided more information than you need to answer the question. That is to done to give you practice in knowing what to use and what to ignore.

The average speed is 2/1.5 = 4/3 m/s. The final speed is twice that, or 8/3 m/s

The acceleration is the final speed divided by the time

a = (8/3)/(3/2) = 16/9 = 1.78 m/s^2

## Answer This Question

## Related Questions

- Physics - A 2.84 kg block starts from rest at the top of a 30° incline and ...
- physics - A 3.00 kg block starts from rest at the top of a 30° incline and ...
- Physics - A 2.90 kg block starts from rest at the top of a 30° incline and ...
- Physics - A 2.90 kg block starts from rest at the top of a 30° incline and ...
- Physics - A 2.92 kg block starts from rest at the top of a 30° incline and ...
- Physics - A 2.01 kg block starts from rest at the top of a 25.8degree incline ...
- physics - A 2.67 kg block starts from rest at the top of a 27.6 incline and ...
- Physics - A 2.42kg block starts from rest at the top of a 22.9◦ incline ...
- Physics - A block slides down a frictionless plane having an inclination of &#...
- physics - A 3.00 kg block starts from rest at the top of a 33.0° incline and ...

More Related Questions