Posted by **Anonymous** on Friday, October 19, 2012 at 4:21pm.

Gayle runs at a speed of 9.00 m/s and dives on a sled, initially at rest on the top of a frictionless, snow-covered hill, that has a vertical drop of 20.0 m. After she has descended a vertical distance of 4.00 m, her brother, who is initially at rest, hops on her back, and they continue down the hill together. (d) What is their speed at the bottom of the hill?

Gayle’s mass is 70.0 kg, the sled has a mass of 2.00 kg, and her brother has a mass of 50.0 kg.

- Physics URGENT!!! -
**Elena**, Friday, October 19, 2012 at 4:31pm
Please see the Related Questions below

- Physics URGENT!!! -
**Anonymous**, Friday, October 19, 2012 at 4:52pm
What value are you getting? I keep getting the wrong answer.

- Physics URGENT!!! -
**bobpursley**, Friday, October 19, 2012 at 5:10pm
We are not going to feed answer grazers. Show your work, and we can point out errors.

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