Author Question: A stone with a mass of 1.0 kg is tied to the end of a light string which keeps it moving in a circle ... (Read 35 times)

big1devin · **on:** Jul 29, 2018

A stone with a mass of 1.0 kg is tied to the end of a light string which keeps it moving in a circle with a constant speed of 4.0 m/s on a perfectly smooth horizontal tabletop. The radius of the path is 0.60 m.

How much work does the tension in the string do on the stone as it makes one-half of a complete circle? A) 100 J
B) 3.8 J
C) 0 J
D) 40 J
E) 80 J

Question 2

If the velocity versus time graph of an object is a horizontal line, the object is

A) moving with zero acceleration.
B) moving with constant non-zero acceleration.
C) at rest.
D) moving with increasing speed.

peter · **Reply #1 on:** Jul 29, 2018

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