ROTATIONAL MOTION

What is the effect of angular displacement on work done?

• Work is inversely proportional
• Work is independent
• Work is proportional to square of dθ
• Work is proportional to angular displacement

What is the physical meaning of τdθ?

• Power
• Angular momentum
• Work done by torque in angular displacement dθ
• Linear displacement

What is the basis for adding torques algebraically in fixed-axis rotation?

• They are perpendicular
• They are radial
• All torques are parallel to the axis
• They cancel each other

What is the relationship between linear and angular displacement for a rotating particle?

• ds = dθ/r
• ds = r²dθ
• ds = r dθ
• ds = ωt

What determines the plane of rotation for a particle?

• The axis only
• The force direction
• The plane perpendicular to the axis passing through its position
• The tangent at P₁