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Problem 3.21)
In a carnival booth, you win a stuffed giraffe if you
toss a quarter into a small dish. The dish is on a shelf above the
point where the quarter leaves your hand and is a horizontal
distance of 2.1 m from this point. If you toss the coin with a velocity
of 6.4 m
at an angle of 60
°
above the horizontal, the coin lands in
the dish. You can ignore air resistance.
a) What is the height of the shelf above the point where the quarter
leaves your hand?
b) What is the vertical component of the velocity of the quarter just
before it lands in the dish?
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Problem 3.33)
A Ferris wheel with radius 14.0 m is turning about
a horizontal axis through its center. The linear speed of a passenger
on the rim is constant and equal to 7.00 m/s.
a) What is the magnitude of the passenger's acceleration as she
passes through the lowest point
and the highest in her circular
motion?
b) How much time does it take the Ferris wheel to make one
revolution?
Chapter 4 : Newton’s Laws
of Motion
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View Full Document 1. Force and Interactions
Force
Loosely defined as “pushing” or “pulling.”
An influence that may cause a body to accelerate
Vector Quantity
Unit : N = kg m/s
2
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This note was uploaded on 02/13/2012 for the course RANDOM 100 taught by Professor Idk during the Fall '08 term at Virginia Tech.
 Fall '08
 idk

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