This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: www.clas.ucsb.edu/staff/vince Physics 6A Ch. 7 In Class Worksheet (Page 2) 4) Deep in the forest, a 17.0g leaf falls from a tree and drops straight to the ground. If its initial height was 5.30m and its speed on landing was 1.3m/s, how much non-conservative work was done on the leaf? 5) When a force of 120.0N is applied to a certain spring, it causes a stretch of 2.25cm. What is the potential energy of this spring when it compressed by 3.50cm? 6) A 100kg crate is pulled along a rough level floor at constant speed by a rope inclined at an angle of 30. If the coefficient of kinetic friction is 0.4, find the tension in the rope and the work done by the ropes tension when the crate moves 10m....
View Full Document