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
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Hi can you do number 9 please
Transcribed Image Text:Page
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9. For each situation draw a before and after free body diagram and fill in the table with (+, -, or 0).
En
Fn Lock: On
a. An elevator moves up at constant speed:
Wen
W.
grav
W
ΔΚ
b. A box slides up a frictionless slope:
W norm
W grav
ΔΚ
10. The left end of a spring is attached to a wall. When Bob pulls on the
he stretches the spring by 20 cm. The same spring is then used for a tug-of-war between Bob
end with a 200N force
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?
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