Thursday

January 29, 2015

January 29, 2015

Posted by **Melissa** on Friday, June 15, 2012 at 7:42pm.

A) the total mechanical energy of the toboggan at a relative to b

B) the sped of the toboggan at b

C) the speed of the toboggan at c

- physics -
**Damon**, Friday, June 15, 2012 at 9:14pmE = (1/2) m v^2 + m g h = constant forever in this problem

mass does not matter here, cancels

E = m g (12) forever

m g (12) = (1/2) m v^2 + m g(0) at b

12 * 9.8 = (1/2) v^2 solve for v at b

m g (12) = (1/2) m v^2 + m g (3)

9 * 9.8 = (1/2) m v^2 solve for v at c

**Answer this Question**

**Related Questions**

Physics - A skier starts at rest on the top of Mt Circular, a strange, smooth, ...

physics - A toboggan approaches a snowy hill moving at 15.0 m/s. The ...

Science - Two children, m1 = 50 kg and m2 = 55 kg, and a plastic sled of mass 35...

Science - Two children, m1 = 50 kg and m2 = 55 kg, and a plastic sled of mass 35...

physics - A toboggan slides down a hill and has a constant velocity. The angle ...

physics - A toboggan slides down a hill and has a constant velocity. The angle ...

physics - The cart starts from rest at the top of a hill with height, H2. It ...

physics - The cart starts from rest at the top of a hill with height, H1. It ...

physics!!! - a sled and rider with a combined weight of 60kg are at rest on top ...

physics - A sled rider with a combined mass of 50.0kg are at the top of a hill ...