What is the magnitude of the couple which acts on a rotating circular disc of radius 2m, if a constant tangential force of 2N is responsible for the rotatio...

Assessment: JAMB UTME - Physics - 2015 Subject: Physics

Question 1 Report

What is the magnitude of the couple which acts on a rotating circular disc of radius 2m, if a constant tangential force of 2N is responsible for the rotation.
Answer Details
The magnitude of the couple (torque) that acts on a rotating circular disc can be calculated using the equation: τ = Fr where τ is the torque, F is the force, and r is the radius. In this case, the force is 2 N and the radius is 2 m, so the torque is: τ = F * r = 2 N * 2 m = 4 Nm. So, the magnitude of the couple that acts on the rotating circular disc is 4 Nm.
Read lesson note on Equilibrium Of Forces (WAEC)
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