<text><span class="style10">orces affecting Solids and Fluids (2 of 9)Forces involved in rotation</span><span class="style7"></span><span class="style26">Torque</span><span class="style7"> (or </span><span class="style26">moment of a force</span><span class="style7">) measures the tendency of a force to cause the body to rotate. In this case the force causes </span><span class="style26">angular acceleration</span><span class="style7">, which is the </span><span class="style26">rate of change of angular momentum</span><span class="style7"> of the body. Torque is defined as the product of the force acting on a body and the perpendicular distance from the axis of the rotation of the body to the line of action of the force. Torque has units of force x distance, usually expressed as </span><span class="style26">newton meters</span><span class="style7"> (N m). Torque is increased if either the force or the perpendicular distance is increased. If a wedge is used to keep a door open, it has maximum effect if it is placed on the floor as far from the hinge as possible.</span></text>
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<text><span class="style10">. Torque</span><span class="style7">. Torque or moment of a force = force x perpendicular distance = Fd.</span></text>
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<text>ΓÇó MOTION AND FORCEΓÇó THERMODYNAMICSΓÇó HOW CARS WORK</text>