Answered: 18. Tied to a rope and pulled so that…

18. Tied to a rope and pulled so that the rock-moves horizontally at constant velocity. Note: There must be air friction in this case.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter1: A Physics Toolkit

Section: Chapter Questions

Problem 7STP

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Question

Number 18

Juad. H Per:2
Fe=centriptel T= Tension
Force
N= normal
F=Frickion
w=weight/
Force of
Free-Body Diagrams
In each case, a rock is acted on by one or more forces. All drawings are in a vertical plane, and friction is negligible
except where noted. Draw accurate free-body diagrams showing all forces acting on the rock. Please use a ruler,
and do it in pencil so you can correct mistakes. The first one Is done as an example.
67.
17. Tied to a rope and pulled straight downward.
Accelerating downward at 19.6 m/s. No friction.
18. Tied to a rope and pulled so that the rock movés
horizontally at constant velocity. Note: There must be
air friction in this case.
constant v
19. Tied to a rope and pulled so that the rock
accelerates horizontally at 2g. No air friction
20. Swinging on a rope, at lowest position.
No friction.
1 T=fC
21. Tled to a post and moving in a circe at constant
speed on a frictionless horizontal surface. Coming
straight out of the paper.
22. Tied to point A by a string. Moving in a horizontal
circle at constant speed. Not resling on a solid surface.
No friction. Coming straight out of the paper.
3. Swinging on a rope. No friction.
24. Tied to point B. Moving downward in a vertical
circde with string horizontal. No friction.
IN

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