Question

Centripetal Force for Varied Mass with Constant Radius and Speed		Centripetal Force for Varied Radius with Constant Mass and Speed		Centripetal Force for Varied Speed with Constant Radius and Mass
Mass (kg)(kg)	Force (N)(N)	Radius (m)(m)	Force (N)(N)	Speed (m/s)(m/s)	Force (N)(N)
0.10.1	4.04.0	0.60.6	4.04.0	2.02.0	4.04.0
0.20.2	8.08.0	0.30.3	8.08.0	3.03.0	9.09.0
0.30.3	12.012.0	0.20.2	12.012.0	4.04.0	16.016.0

A student conducts three experiments to determine how certain quantities influence the centripetal force responsible for an object to spin in a horizontal circle. The student uses one end of a string to attach the object while the other end is connected to a force sensor that allows the student to change the tension on the string, as shown in the figure. The student records data from the three experiments in the table above. Which of the following experiments, if any, collected data that do not agree with the expression for the net centripetal force on the object?

• A)The experiment in which mass was changed

• B)The experiment in which the radius of the circular path was changed

• C)The experiment in which the speed of the object was changed

• D)All the data are expected.

Answer 1

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