Assertion: Torque on a body can be zero even if there is a net force on it.
Reason: Torque and force on a body are always perpendicular.
If both assertion and reason are true and reason is a true explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false.
If both assertion and reason are false.
TORQUE IS THE CROSS PRODUCT OF POSITION VECTOR OF POINT OF ACTION OF FORCE WRT POINT OF REFERENCE AND FORCE