The force required to move a 50.0 kg object in a 55.0 m circle at a constant speed of 2.60 m/s is
A) 0.0 N
B) 6.1 N
C) 0.12 N
D) 2.36 N

Question

Quizplus · Accepted Answer

The force required to move an object in a circle at a constant speed is given by:

F = mv^2/r

where m is the mass of the object, v is its speed, and r is the radius of the circle.

In this case, m = 50.0 kg, v = 2.60 m/s, and r = 55.0 m/2π= 8.762 m (using 2πr = circumference).

Therefore,

F = (50.0 kg) x (2.60 m/s)^2 / 8.762 m = 6.10 N

So the answer is B, 6.1 N.

The Force Required to Move a 50