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1. In a tug-of-war, each man on a 5-man team pulls with an average force of 500 N. What is the tension in the center of the rope?

A zero newtons
B 100 N
C 500 N
D 2500 N
E 5000 N

2. A ball moves with a constant speed of 4 m/s around a circle of radius 0.25 m. What is the period of the motion?

A 0.1 s
B 0.4 s
C 0.7 s
D 1 s
E 2 s

3. A race car is traveling at constant speed around a circular track. What happens to the centripetal acceleration of the car if the speed is doubled?

A It remains the same.
B It increases by a factor of 2.
C It increases by a factor of 4.
D It is decreased by a factor of one-half.
E It is decreased by a factor of one-fourth.

4. A car enters a horizontal, curved roadbed of radius 50 m. The coefficient of static friction between the tires and the roadbed is 0.20. What is the maximum speed with which the car can safely negotiate the unbanked curve?

This solution contains four questions. The first is a tug of war tension question. The next three relate to circular motion of a ball, a race car and car tires.

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... the rope to sag 1.20 m. What is the tension in the ... s b. 2 m/s c. 3 m/s d. 4 m/s. ... solution is comprised of detailed explanations of various problems in classical ...

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(See attached file for full problem description ... A 15.0-m rope is pulled taut with a tension of 140 N. It takes 0.545 s for ... b. It is reduced by a factor of four. ...

... Or The tension in the string behaves as centripetal force given by mv2/r thus at radius r using above equation it is ...Four good problems of gravitation and ...

... a. These counterinstances create tension and crisis ... assurance that i. the older paradigm will ultimately solve all its problems. ...4. How are scientists converted ...

Six problems on mechanics ... is at the position A, along the vertical path, determine the tension in the ...4. The 15-Mg freight car A and 25-Mg freight car B travel ...