COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 5, Problem 26QAP
To determine
Tension T1in the shorter string compared to the tension T2in the longer one
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A 1-kg particle is attached to the end of a rope. It
rotates in a vertical circle of radius 1 m. When
the particle is at the lowest point (bottom) of the
circle, its speed is 10 m/s. The tension in the rope
at this point is:
A. 109.8 N
B. 45.7 N
C. 12.5 N
D. 90.2 N
E. Zero
O A
B
D
O E
49. A 615-kg racing car completes one lap in 14.3 s
around a circular track with a radius of 50.0 m.
The car moves at constant speed.
a. What is the acceleration of the car?
b. What force must the track exert on the tires
to produce this acceleration?
50. An athlete whirls in a 7.00-kg hammer tied to
the end of a 1.3-m chain in a horizontal circle.
The hammer makes one revolution in 1.0 s.
a. What is the centripetal acceleration of
the hammer?
b. What is the tension in the chain?
10. A 1.55-kg stone is tied to a 1.22-m long string and whirled in a vertical circle at a constant speed of 4.20 m/s. What
is the tension in the string when the stone passes by the highest point?
N
101 a con
101 ago
Chapter 5 Solutions
COLLEGE PHYSICS
Ch. 5 - Prob. 1QAPCh. 5 - Prob. 2QAPCh. 5 - Prob. 3QAPCh. 5 - Prob. 4QAPCh. 5 - Prob. 5QAPCh. 5 - Prob. 6QAPCh. 5 - Prob. 7QAPCh. 5 - Prob. 8QAPCh. 5 - Prob. 9QAPCh. 5 - Prob. 10QAP
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A man whirls a 0.20-kg piece of lead attached to the end of a string of length 0.500 m in a circular path and in a vertical plane. If the man maintains a constant speed of 4.00 m/s, what is the tension in the string when the lead is (a) at the top of the circular path? (b) at the bottom of the circular path? (Sec Section 7.4.)arrow_forward1. A rollercoaster car with a total weight of 500 kg entering Aa loop with a velocity of 35 m/s. The loop has a radius of 10 meters. (Circular Motion) a. What is normal force acting on the car at the bottom of the loop? b. What is the normal force acting on the car at the top of the loop?arrow_forward14. You can swing a ball on a string in a vertical circle if you swing it fast enough. a. Draw two free-body diagrams of the ball at the top of the circle. On the left, show the ball when it is going around the circle very fast. On the right, show the ball as it goes around the circle more slowly. Very fast Slower 2.8 b. As you continue slowing the swing, there comes a frequency at which the string goes slack and the ball doesn't make it to the top of the circle. What condition must be satisfied for the ball to be able to complete the full circle? c. Suppose the ball has the smallest possible frequency that allows it to go all the way around the circle. What is the tension in the string when the ball is at the highest point? Explain. © 2017 Poarson Educationarrow_forward
- 10. A 260-g ball is tied to a string and it is being swung faster and faster in a nearly horizontal circle. When the speed reaches 16.5 m/s the tension reaches a value of 60.0 N, the string breaks. What is the radius of the circle? cmarrow_forwardA 2.8 kg ball is spun on a 1.6 m string in a vertical circle at a constant velocity of 4.0 m/s. What is the tension on the string at the bottom of the circle? A. 0.56 N B. 18 N C. 28 N D. 55 N What is the tension on the string at the side of the circle? A. 0.56 N B. 18 N C. 28 N D. 55 Narrow_forwardAn object tied to the end of a rope swings in a vertical circle (R = 1.2 m), as shown. At an instant when θ = 30 °, the velocity of the object is 5.1 m / s and the tension in the string has a magnitude of 20 N. What is the mass of the object?a. 1.5b. 0.80c. 1.2d.2.0arrow_forward
- A boy takes a 1.5-kg rock and ties it to the end of a 0.80-m-long, massless, uniform rope. He then swings the rock in a vertical circle. If the speed of the rock at the bottom of the swing is 5.0 m/s, what is the tension in the rope? QUESTION 8 a. 52 N Ob.72 N OC. 57 N d. 67 N e. 62 Narrow_forward4. A Ferris wheel has a radius of 9.00 m and is set so that its passengers move at 3.00 m/s. The mass of a passenger is 60 kg. a. What is the passenger's normal force when the Ferris wheel is at the bottom of its path? b. What is the force factor at the bottom? c. What is the passenger's normal force at the top? d. What is the force factor at the top?arrow_forwardA 1-kg particle is attached to the end of a rope. It rotates in a vertical circle of radius 1 m. When the particle is at the lowest point (bottom) of the circle, its speed is 10 m/s. The tension in the rope at this point is: А. 109.8 N B. 45.7 N С. 12.5 N D. 90.2 N E. Zeroarrow_forward
- Name: ID: A 16. A 30-kg child rides on a circus Ferris wheel that takes her around a vertical circular path with a radius of 20 m every 22 s. What is the magnitude of the resultant force on the child at the highest point on this trajectory? 49 N a. b. 0.29 kN 0.34 kN d. C. 0.25KN 0,76 kN e. a * hp IIarrow_forward3. One end of a string of length 1.5m is tied to a stone of mass 450gram is swung in a vertical circle. a. What is the minim speed of the ball must have at the top of its are so that the stone continues moving in a circle? b. Calculate the tension in the string at the bottom and top most pointarrow_forwardAn airplane moves 140 m/s as it travels around a vertical circular loop which has a 1.0-km radius. What is the magnitude of the resultant force on the 70-kg pilot of this plane at the bottom of this loop? O a. 1.3 kN O b.0.69 kN Oc. 1.5 kN O d. 2.1 kN O e. 1.4 kNarrow_forward
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