An Introduction to Physical Science
14th Edition
ISBN: 9781305079137
Author: James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher: Cengage Learning
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Chapter 2, Problem 11FIB
To determine
To fill in the blank: If the speed of one object in uniform circular motion is two times that of another such object (same radius) then its centripetal acceleration is times greater.
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A ball traveling in a circle with a constant speed of 3.6 m/s has a centripetal acceleration of 7.0 m/s2. What is the radius of the circle? (Answer in meters.)
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Which of the following is true about an object in uniform circular motion?
It's velocity is constant
all of the other options are false
O It's radius is constant
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Chapter 2 Solutions
An Introduction to Physical Science
Ch. 2.1 - What is needed to designate a position?Ch. 2.1 - What is motion?Ch. 2.2 - Between two points, which may be greater in...Ch. 2.2 - Prob. 2PQCh. 2.2 - Prob. 2.1CECh. 2.2 - A communications satellite is in a circular orbit...Ch. 2.3 - What is the average speed in mi/h of a person at...Ch. 2.3 - What motional changes produce an acceleration?Ch. 2.3 - Prob. 2PQCh. 2.3 - If the car in the preceding example continues to...
Ch. 2.3 - Prob. 2.5CECh. 2.4 - Prob. 1PQCh. 2.4 - Prob. 2PQCh. 2.4 - Prob. 2.6CECh. 2.5 - Neglecting air resistance, why would a ball...Ch. 2.5 - Prob. 2PQCh. 2 - Visualize the connections and give the descriptive...Ch. 2 - KEY TERMS 1. physics (intro) 2. position (2.1) 3....Ch. 2 - KEY TERMS 1. physics (intro) 2. position (2.1) 3....Ch. 2 - Prob. CMCh. 2 - Prob. DMCh. 2 - Prob. EMCh. 2 - Prob. FMCh. 2 - Prob. GMCh. 2 - Prob. HMCh. 2 - Prob. IMCh. 2 - Prob. JMCh. 2 - Prob. KMCh. 2 - Prob. LMCh. 2 - Prob. MMCh. 2 - Prob. NMCh. 2 - Prob. OMCh. 2 - Prob. PMCh. 2 - Prob. QMCh. 2 - KEY TERMS 1. physics (intro) 2. position (2.1) 3....Ch. 2 - What is necessary to designate a position? (2.1)...Ch. 2 - Which one of the following describes an object in...Ch. 2 - Which one of the following is always true about...Ch. 2 - Which is true of an object with uniform velocity?...Ch. 2 - Acceleration may result from what? (2.3) (a) an...Ch. 2 - For a constant linear acceleration, what changes...Ch. 2 - Which one of the following is true for a...Ch. 2 - An object is projected straight upward. Neglecting...Ch. 2 - If the speed of an object in uniform circular...Ch. 2 - Neglecting air resistance, which of the following...Ch. 2 - In the absence of air resistance, a projectile...Ch. 2 - A football is thrown on a long pass. Compared to...Ch. 2 - An object is in motion when it undergoes a...Ch. 2 - Speed is a(n) ___ quantity. (2.2)Ch. 2 - Velocity is a(n) ___ quantity. (2.2)Ch. 2 - ___ is the actual path length. (2.2)Ch. 2 - Prob. 5FIBCh. 2 - Prob. 6FIBCh. 2 - The distance traveled by a dropped object...Ch. 2 - Prob. 8FIBCh. 2 - The metric units associated with acceleration are...Ch. 2 - Prob. 10FIBCh. 2 - Prob. 11FIBCh. 2 - Neglecting air resistance, a horizontally thrown...Ch. 2 - What area of physics involves the study of objects...Ch. 2 - What is necessary to designate the position of an...Ch. 2 - How are length and time used to describe motion?Ch. 2 - Prob. 4SACh. 2 - Prob. 5SACh. 2 - How is average speed analogous to an average class...Ch. 2 - A jogger jogs two blocks directly north. (a) How...Ch. 2 - Prob. 8SACh. 2 - The gas pedal of a car is commonly referred to as...Ch. 2 - Does a negative acceleration always mean that an...Ch. 2 - A ball is dropped. Assuming free fall, what is its...Ch. 2 - A vertically projected object has zero velocity at...Ch. 2 - Can a car be moving at a constant speed of 60 km/h...Ch. 2 - What is centripetal about centripetal...Ch. 2 - Are we accelerating as a consequence of the Earth...Ch. 2 - What is the direction of the acceleration vector...Ch. 2 - For projectile motion, what quantities are...Ch. 2 - How do the motions of horizontal projections with...Ch. 2 - Prob. 19SACh. 2 - Can a baseball pitcher throw a fastball in a...Ch. 2 - Figure 2.14(b) shows a multiflash photograph of...Ch. 2 - Taking into account air resistance, how do you...Ch. 2 - Do highway speed limit signs refer to average...Ch. 2 - Prob. 2AYKCh. 2 - What is the direction of the acceleration vector...Ch. 2 - Is an object projected vertically upward in free...Ch. 2 - A student sees her physical science professor...Ch. 2 - How would (a) an updraft affect a skydiver in...Ch. 2 - A skydiver uses a parachute to slow the landing...Ch. 2 - Tractor-trailer rigs often have an airfoil on top...Ch. 2 - A gardener walks in a flower garden as illustrated...Ch. 2 - What is the gardeners displacement (Fig. 2.21)?...Ch. 2 - At a track meet, a runner runs the 100-m dash in...Ch. 2 - A jogger jogs around a circular track with a...Ch. 2 - A space probe on the surface of Mars sends a radio...Ch. 2 - A group of college students eager to get to...Ch. 2 - A student drives the 100-mi trip back to campus...Ch. 2 - A jogger jogs from one end to the other of a...Ch. 2 - An airplane flying directly eastward at a constant...Ch. 2 - A race car traveling northward on a straight,...Ch. 2 - A sprinter starting from rest on a straight, level...Ch. 2 - Modern oil tankers weigh more than a half-million...Ch. 2 - A motorboat starting from rest travels in a...Ch. 2 - A car travels on a straight, level road. (a)...Ch. 2 - A ball is dropped from the top of an 80-m-high...Ch. 2 - What speed does the ball in Exercise 15 have in...Ch. 2 - Figure 1.18 (Chapter 1) shows the Hoover Dam...Ch. 2 - A spaceship hovering over the surface of Mars...Ch. 2 - A person drives a car around a circular, level...Ch. 2 - A race car goes around a circular, level track...Ch. 2 - If you drop an object from a height of 1.5 m, it...Ch. 2 - A golfer on a level fairway hits a ball at an...
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- Which of the following is impossible for a car moving in a circular path? Assume that the car is never at rest. (a) The car has tangential acceleration but no centripetal acceleration. (b) The car has centripetal acceleration but no tangential acceleration. (c) The car has both centripetal acceleration and tangential acceleration.arrow_forwardA ball on the end of a string is whirled around in a horizontal circle of radius 0.300 m. The plane of the circle is 1.20 m above the ground. The string breaks and the ball lands 2.00 m (horizontally) away from the point on the ground directly beneath the balls location when the string breaks. Find the radial acceleration of the ball during its circular motion.arrow_forwardA rubber stopper on the end of a string is swung steadily in a horizontal circle. In one trial, it moves at speed v in a circle of radius r. In a second trial, it moves at a higher speed 3v in a circle of radius 3r. In this second trial, is its acceleration (a) the same as in the first trial, (b) three times larger, (c) one-third as large, (d) nine times larger, or (e) one-ninth as large?arrow_forward
- A merry-go-round with radius 1.2 m is moving in a circular motion with 6 m/s. Compute its(a) period of the motion. (b) centripetal acceleration.arrow_forwardIf an object moves along a circular path at a constant speed, why would velocity constantly change?arrow_forwardFor a biological sample in a centrifuge with a radius of 1.0 m to have a centripetal acceleration of 25 g, the speed must be: a) 11 m/sb) 122 m/sc) 50 m/sd) 16 m/se) 245 m/sarrow_forward
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- Centripetal Acceleration is: Directly proportional to the velocity. Directly proportional to the radius of curvature. Inversely proportional to the velocity. None of the above.arrow_forwardA jogger is running around a circular track that has a circumference of 472m. The magnitude of the centripetal acceleration of the jogger is 128cm/s2 .Calculate the jogger's speed in kilometer per hourarrow_forwardIf the speed of an object in uniform circular motion is tripled and the radial distance remains constant, then the magnitude of the centripital acceleration increases by what factor?arrow_forward
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