Home › CBSE Class 11 (Science) › Physics › System of Particles and Rotational Motion › A couple has what total external force and torque?
A couple has what total external force and torque?
ANonzero force, zero torque
BZero force, nonzero torque
CNonzero force, nonzero torque
DZero force, zero torque
Answer & Solution
Correct answer: B. Zero force, nonzero torque
A couple is two equal and opposite forces, which sum to zero force but still turn the body.
Related questions
A cylinder rolls without slipping. What is the velocity of its contact point?A shell flying along a parabola explodes in mid-air by internal forces. Its fragments' CM Mechanical advantage of a lever is defined as which ratio?What is the support point of a lever called?Angular acceleration α is defined as which derivative?A particle moves in a circle of radius 3 m at angular velocity 2 rad/s. Its linear speed iA person on a spinning chair stretches both arms out. What happens to angular speed?Rotational kinetic energy of a rigid body is given by which expression?