1. A ball weighing 60 N is swinging like a pendulum at the end of a 6.0 m rope. As the ball swings through its lowest point, its speed is measured at 5.0 m/s. What is the tension in the rope at this point? A. 58.6 N
B. 85.4 N
C. 90.2 N
D. 97.3 N
2. A 70 kg stunt pilot begins pulling out of a dive into a vertical circle. If the plane’s speed at the lowest point of the circle is 80 m/s, what is the apparent weight of the pilot at the lowest point of the pullout? The pilot experiences a force of 5g from the centripetal acceleration at the bottom of the dive.

A. 3430 N
B. 3880 N
C. 3986 N
D. 4116 N
3. A Ferris wheel has a diameter of 60 m and a period of rotation of 70 s. A passenger weighs 500 N. What is her apparent weight at the highest point of the Ferris wheel?

A. 298 N
B. 350 N
C. 487 N
D. 513 N
4. A Ferris wheel has a diameter of 90 m and a period of rotation of 65 s. A passenger weighs 300 N. What is her apparent weight at the lowest point of the Ferris wheel?

A. 198.2 N
B. 312.4 N
C. 350.8 N
D. 400.6 N
5. A little girl is walking, swinging her arms through a 20° angle every 0.25 s. The length of each arm is 30 cm. Assuming that the arms move with constant speed during each swing, find the force that the blood vessel in her arm would exert on a 1-gram drop of blood from the end of the arm if her arm were not swinging.

A. 1.04 × 10−2 N
B. 4.9 × 10−3 N
C. 9.22 × 10−3 N
D. 9.8 × 10−3 N