Question

Put a pipe over the end of a wrench when trying to turn a stubborn nut on a bolt, to effectively make the wrench handle twice as long, you will increase the torque by

Answer 1

Hint : To answer this question, we must have knowledge of torque and rotational force then we can easily answer this type of questionIn simple terms, torque is a measure of how much a force acting on an object causes that object to rotate. The object rotates about an axis, which we will call the pivot point.

Complete Step By Step Answer:
As it is given in question that what will happen if the wrench handle is twice as long lest see. We know that the torque is the rotational equivalent force so we can say that,
torque equal to rotational force and is equal to force into the liver arm.
So, we can say that if we make the lever arm twice as great, we increase the torque by two.

Additional Information:
When a torque is applied to an object it begins to rotate with an acceleration inversely proportional to its moment of inertia. This relation can be thought of as Newton's Second Law for rotation. The moment of inertia is the rotational mass and the torque is rotational force. Angular motion obeys Newton's First Law.

Note :
The torque produced in a body makes the body rotate about an axis, which is called the axis of rotation. In physics, torque is simply the tendency of a force to turn or twist. The formula used to calculate the torque is given by $\tau = F.r.\sin \theta$ . Unit of torque is Newton-meter (N-m).