Net Work & Kinetic Energy Video Lessons

Concept

# Problem: An 8.1 kg crate is pulled 5.1 m up a 30 incline by a rope angled 18 N above the incline. The tension in the rope is 130 (Pages 222 - 223) and the crates coefficient of kinetic friction on the incline is 0.25.You may want to review (Pages 222 - 223) . For help with math skills, you may want to review: The Vector Dot Product How much work is done by tension, by gravity, and by the normal force?What is the increase in thermal energy of the crate and incline?

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###### Problem Details
An 8.1 kg crate is pulled 5.1 m up a 30 incline by a rope angled 18 N above the incline. The tension in the rope is 130 (Pages 222 - 223) and the crates coefficient of kinetic friction on the incline is 0.25.

You may want to review .

For help with math skills, you may want to review:

How much work is done by tension, by gravity, and by the normal force?

What is the increase in thermal energy of the crate and incline?

What scientific concept do you need to know in order to solve this problem?

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