9. For each situation draw a before and after free body diagram and fil in the table with (+, -, or 0). a. An elevator moves up at constant speed: We W.. AK b. A box slides up a frictionless slope: AK 10. The left end of a spring is attached to a wall. When Bob pulls on the right end with a 200N force, he stretches the spring by 20 cm. The same spring is then used for a tug-of-war between Bob and Carlos. Each pulls on his end of the spring with a 200 N force. (a) how far does Bob's end of the spring move? (b) How far does Carlos's end of the spring move? 11. When a 65 kg cheerleader sands on a vertical spring, the spring compresses by 5.5 cm. When a second cheerleader stands on the shoulders of the first, the spring compresses and additional 4.5 cm. What is the mass of the second cheerleader?
9. For each situation draw a before and after free body diagram and fil in the table with (+, -, or 0). a. An elevator moves up at constant speed: We W.. AK b. A box slides up a frictionless slope: AK 10. The left end of a spring is attached to a wall. When Bob pulls on the right end with a 200N force, he stretches the spring by 20 cm. The same spring is then used for a tug-of-war between Bob and Carlos. Each pulls on his end of the spring with a 200 N force. (a) how far does Bob's end of the spring move? (b) How far does Carlos's end of the spring move? 11. When a 65 kg cheerleader sands on a vertical spring, the spring compresses by 5.5 cm. When a second cheerleader stands on the shoulders of the first, the spring compresses and additional 4.5 cm. What is the mass of the second cheerleader?
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter4: Dynamics: Force And Newton's Laws Of Motion
Section: Chapter Questions
Problem 24PE: The wheels of a midsize car exert a force of 2100 N backward on the road to accelerate the car in...
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Hi can you do number 9 please
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