Physics Fundamentals
2nd Edition
ISBN: 9780971313453
Author: Vincent P. Coletta
Publisher: PHYSICS CURRICULUM+INSTRUCT.INC.
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Chapter 3, Problem 22P
To determine
The acceleration of a child seated on a large merry-go-round
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A large merry-go-round completes one revolution every 10.0 s. Compute the acceleration of a child seated on it, a distance of 6.00 m from its center.
A large merry-go-round completes one revolution every 10.5 s. Compute the acceleration of a child seated on it, a distance of 5.05 m from its center.
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An object with mass 2.50 kg is moving along a circular path with a radius of 2.20m. At an instant when the speed of the object is equal to 3.50m/s and is changing at a rate of 5.40 m/s^2, calculate the magnitude of the total acceleration (in m/s^2) of the object. Round the answer to 3 decimal places.
Chapter 3 Solutions
Physics Fundamentals
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- How many revolutions does the object make during the first 2.6s ?arrow_forwardA Ferris wheel with a radius of 9.5 m rotates at a constant rate,completing one revolution every 36 s. Find the direction and magnitude of a passenger’s acceleration when (a) at the top and (b) atthe bottom of the wheel.arrow_forwardthe wheel of for fortune is divided into twelve angular sections, each of which is 30 degrees. determine the total number of revolutions when the wheel stops. the deceleration of the wheel has a magnitude of 1.09 rev/sec^2 amd the initial angular velocity is 4.77 rev/sec. round off answer to the nearest whole number.arrow_forward
- The power to electric motor rotating at 600 rpm is cut off. If the magnitude deceleration of the centrifuge is 2.3 rad/s2 how many revolutions does it make before coming to rest?arrow_forwardThe earth rotates once per day about an axis passing through the north and south poles, an axis that is perpendicular to the plane of the equator. Assuming the earth is a sphere with a radius of 6.38 x 106 m, determine the speed and centripetal acceleration of a person situated (a) at the equator (b) at a latitude of 76.0 ° north of the equator (All answers need to be in 3 sig figs)arrow_forwardA particle moves at constant speed in a circle of radius 2.06 cm. If the particle makes four revolutions every second, determine the magnitude of its accelerationarrow_forward
- A race car entering the curved part of the track at the Daytona 500 drops its speed from 85.0 m/s to 80.0 m/s in 2.0 s. If the radius of the curved part of the track is 316.0 m, calculate the total acceleration of the race car at the beginning and ending of reduction of speed.arrow_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_forwardA small object moves at constant speed in a horizontal circle of radius 0.425 m. If the object makes two complete revolutions in one second, what is the magnitude of the acceleration of the object?arrow_forward
- How fast (in rpm) must a centrifuge rotate if a particle 7.5 cm from the axis of rotation is to experience an acceleration of 2.0×105 g's? Express your answer using two significant figures.arrow_forwardTo anticipate the dip and the hump in the road, the driver of a car applies his brakes to produce a uniform deceleration. His speed is 100kph at the bottom A of the dip and 50 kph at the top Cof the hump. The length of the road from A to Cis 120m. The radius of curvature of the hump at C is 150m. The total acceleration at A is 3 m/s^2. Compute the radius of curvature at A. C 60 m В 60 m A A) 612.15m B) 502.39m c) 432.32m D 243.23m E) 549.81marrow_forwardA Ferris wheel having radius of 14 m rotates counterclockwise is just starting up. At a given instant, a passenger on the rim of the wheel sand passing through the lowest point of his circular motion is moving at 3.00 m/s and is gaining speed at a rate of 0.500 m/s^2. Find the magnitude and direction of the passenger’s acceleration at this instant.arrow_forward
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