An 8.1 kg crate is pulled 5.2 m up a 30° incline by a rope angled 18° above the incline. The tension in the rope is 100 N and the crate's coefficient of kinetic friction on the incline is 0.26. ☑ Part A How much work is done by tension, by gravity, and by the normal force? Express your answers in joules to two significant figures. Enter your answers numerically separated by commas. ▸ View Available Hint(s) WT, WG, Wn = Submit Part B - ΜΕ ΑΣΦ What is the increase in thermal energy of the crate and incline? Express your answer in joules to two significant figures. ▸ View Available Hint(s) AEth= Submit Π ΑΣΦ ? J ? J
An 8.1 kg crate is pulled 5.2 m up a 30° incline by a rope angled 18° above the incline. The tension in the rope is 100 N and the crate's coefficient of kinetic friction on the incline is 0.26. ☑ Part A How much work is done by tension, by gravity, and by the normal force? Express your answers in joules to two significant figures. Enter your answers numerically separated by commas. ▸ View Available Hint(s) WT, WG, Wn = Submit Part B - ΜΕ ΑΣΦ What is the increase in thermal energy of the crate and incline? Express your answer in joules to two significant figures. ▸ View Available Hint(s) AEth= Submit Π ΑΣΦ ? J ? J
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter5: Newton's Laws Of Motion
Section: Chapter Questions
Problem 63PQ: A 75.0-g arrow, fired at a speed of 110 m/s to the left, impacts a tree, which it penetrates to a...
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