Question

A circular object of radius r rolls without slipping on a horizontal level floor with the center having velocity V. The velocity at the point of contact between the object and the floor is

• A. Zero
• B. V in the direction of motion
• C. V opposite to the direction of motion
• D. V vertically upward from the floor

Answer 1

The correct option is A Zero


$V_P=\omega \times \overline{OP}=2\omega r$
$V_C=\omega \times \overline{OC}=\omega r$
$V_O=\omega \times 0=0$