1. A 0.5kg cup of water is swung around in a vertical circle just fast enough so the water can't fall out. a) What's the least amount of acceleration this water and cup would have on them? b) If the string tied to the cup is 0.6m long, what would the velocity of the cup and water have to be in order to have this acceleration? c) What force would the string have to apply to the cup to get this to happen?

Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter6: Motion In Two Dimensions
Section: Chapter Questions
Problem 94A
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please answer all of the questions in the imagine I submitted. thank you!

Name:
Class Period:
Circular Motion 1
Physics Phor Phun
Directions: Answer the following questions as best you can.
1. A 0.5kg cup of water is swung around in a vertical circle just fast enough so the water can't fall out.
a) What's the least amount of acceleration this water and cup would have on them?
b) If the string tied to the cup is 0.6m long, what would the velocity of the cup and water have to be in order to
have this acceleration?
c) What force would the string have to apply to the cup to get this to happen?
2. A space station {looking like a space donut} has a radius of 50m. What would it's velocity have to be in order to
simulate the Earth's gravity?
b) How long would it take for the space station to make one complete rotation at that speed?
3. Presently the weight of an object is more than enough to keep something from "falling off" the surface of the
Earth. If the Earth has a radius of 6,400,000m how fast would something have to go (or the Earth have to
spin) in order to no longer be kept in the circular path around the center of the Earth? (You can pick the mass
of any object you want.)
87
©1998 Science Joy Wagon
Transcribed Image Text:Name: Class Period: Circular Motion 1 Physics Phor Phun Directions: Answer the following questions as best you can. 1. A 0.5kg cup of water is swung around in a vertical circle just fast enough so the water can't fall out. a) What's the least amount of acceleration this water and cup would have on them? b) If the string tied to the cup is 0.6m long, what would the velocity of the cup and water have to be in order to have this acceleration? c) What force would the string have to apply to the cup to get this to happen? 2. A space station {looking like a space donut} has a radius of 50m. What would it's velocity have to be in order to simulate the Earth's gravity? b) How long would it take for the space station to make one complete rotation at that speed? 3. Presently the weight of an object is more than enough to keep something from "falling off" the surface of the Earth. If the Earth has a radius of 6,400,000m how fast would something have to go (or the Earth have to spin) in order to no longer be kept in the circular path around the center of the Earth? (You can pick the mass of any object you want.) 87 ©1998 Science Joy Wagon
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