Define pivot 2 marksThe point at which we apply the forceThe fixed point about which an object rotatesThe point around which the handle is locatedThe point at which we should fix the hinges

If two forces of equal magnitude act on an object that is hinged at a pivot, the force acting further from the pivot (irrespective of the force’s direction) always produces the greater torque about the pivot.Group of answer choicesTrueFalse

The turning effect is much larger if the force is closer to the hinges2 marksTrueFalse

describe moment of force or torque as moment = force ×perpendicular distance from pivot to the line of action of force;*4.1.2 explain the turning effect of force

Write the necessary equations of equilibrium of the object shown in the figure below. Take the origin of the torque equation about an axis perpendicular to the page through the point O. (Let counterclockwise torque be positive and let forces to the right and up be positive. Use the following as necessary: the forces Rx, Ry, Fx, Fy, and Fg; the length ℓ of the object; and the angle 𝜃 that the object makes with the horizontal.)A rod of length ℓ makes an acute angle 𝜃 clockwise from the horizontal. A point at the left end of the rod is labeled O. Five forces act on the rod as follows.A force with magnitude Rx begins at the left end of the rod and points horizontally left.A force with magnitude Ry begins at the left end of the rod and points vertically up.A force vector Fg begins at the center of the rod and points vertically down.A force with magnitude Fx begins at the right end of the rod and points horizontally right.A force with magnitude Fy begins at the right end of the rod and points vertically up.ΣFx = = 0ΣFy = = 0Σ𝜏 = 0 = 0

Question 7A "lazy susan" is a disk-shaped rotating platform that a restaurant places at the center of a large dining table. Dishes of food are placed on the lazy susan and diners can rotate the lazy susan by hand to bring various dishes closer to them. A large torque exerted for a short time makes the motionless platform begin rotating rapidly, but that dangerous technique risks tipping over some of the food dishes. How can you make the same motionless platform and dishes begin rotating just as rapidly, but with a smaller, safer torque?1 pointDo the same angular impulse as the dangerous technique, but by exerting a smaller torque for a smaller time.Do the same angular impulse as the dangerous technique, but by exerting the smaller torque for a larger rotational mass.Do the same angular impulse as the dangerous technique, but by exerting the smaller torque for a smaller rotational mass.Do the same angular impulse as the dangerous technique, but by exerting a smaller torque for a longer time.