Saturday

December 20, 2014

December 20, 2014

Posted by **Anon** on Thursday, January 17, 2008 at 10:32am.

At what rate was the car accelerating as it rolled down the plateau?

- Physics -
**drwls**, Thursday, January 17, 2008 at 12:00pmThis is one of those problems where you have to weed out or ignore the information you don't need.

The component of the weight force along the incline is M g sin 12.4. Opposed to that is the rolling friction, which is M g cos 12.4 * 0.125. Subtract the second number from the first for the net force that causes acceleration. Then divide by the mass M for the acceleration, a. Since mass cancels out,

a = g (sin 12.4 - 0.125 cos 12.4)

**Answer this Question**

**Related Questions**

physics - A 1500 kg car at rest rolls down a hill inclined at 10 degrees with ...

physics - A car rolls down a 13.0° slope for 50.0 m, accelerating at 2.90 m/s2...

Physics - This has been posted before but I need someone to elaborate please. A ...

Physics - Your friend's car is parked on a cliff overlooking the ocean on an ...

Physics - A car is moving down a street at 67 km/h. A child suddenly runs into ...

physics - A car is moving down a street at 51 km/h. A child suddenly runs into ...

physics - A car is moving down a street at 51 km/h. A child suddenly runs into ...

physics - In the figure below, a solid cylinder of radius 12 cm and mass 11 kg ...

physics - a car is moving down a street at 55km/h.A child suddenly runs into the...

physics - A car is parked on a cliff overlooking the ocean on an incline that ...