Question

Which of the following statements is incorrect?

• A. Torque is the rotational analogue of force.
• B. Rolling motion of a cylinder down an inclined plane is combination of translation and rotational motion.
• C. If the effort arm is larger than the load arm, the mechanical advantage is lesser than one.
• D. For the extended body, the centre of mass and centre of gravity do not coincide.

Answer 1

Answer: (C)

If the effort arm is larger than the load arm, the mechanical advantage is lesser than one.

Answer 2

If the effort arm is larger than the load arm, the mechanical advantage is greater than one.

All other statements are correct.