49. A 615-kg racing car completes one lap in 14.3 saround 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 tiresto produce this acceleration?50. An athlete whirls in a 7.00-kg hammer tied tothe 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 ofthe hammer?b. What is the tension in the chain?

Lap timing is T = 14.3 s Radius of the track R = 50 m

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?

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?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter5: Newton's Laws Of Motion

Section: Chapter Questions

Problem 26PQ: A race car is moving around a circular track at a constant speed of 65 m/s. It continues moving in...

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Concept explainers

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.

Question

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?

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