ROTATIONAL MOTION

In rotational motion about a fixed axis, which component of torque is effective?

• Radial component
• Tangential component
• Torque along the fixed axis
• Torque perpendicular to axis

What is the formula for angular displacement in uniformly accelerated rotational motion?

• θ = ωt
• θ = ω₀t + ½αt²
• θ = αt²
• θ = ω²/(2α)

How many revolutions correspond to an angular displacement of 1152π rad?

• 288
• 576
• 1152
• 1728

How many radians does a body rotate through if it undergoes 1152π rad of angular displacement?

• 576π rad
• 1152π rad
• 2304π rad
• 1664π rad

What is the initial angular speed in rad/s if a machine starts from 1200 rev/min?

• 30π rad/s
• 35π rad/s
• 40π rad/s
• 45π rad/s