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1) Two unlike parallel forces of the same magnitude but not along the same line forms a a. couple b. inertia c. gravity d. friction
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2) Moment arm is the a. parallel distance b. perpendicular distance c. normal distance d. resultant force
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3) A block of weight 12 N is hanging through a string. Its tension in the string will be a. 10 N b. 11 N c. 12 N d. 0 N
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4) The resultant of forces 10 N along x-axis, 6 N along y-axis and 4 N along negative x-axis is a. 8.5 N making angle 45 ° with x-axis b. 8.5 N making angle 90 ° with x-axis c. 8.3 N making angle 30 ° with x-axis d. 8 N making angle 45 ° with x-axis
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5) If a block returns to its original position after slight tilt then it is in state of a. unstable equilibrium b. stable equilibrium c. neutral equilibrium d. weightlessness
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6) A paratrooper coming down with terminal velocity is a. accelerating b. decelerating c. not in equilibrium d. in equilibrium
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7) The body is in equilibrium if sum of all the a. forces acting on it is zero only b. torque acting on it is zero only c. momentum acting on it zero d. forces and acting on it is zero
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8) A boy tightens the nut of a car using a 16 cm long spanner by applying a force of 180 N. The torque will be a. 2880 N m b. 28.8 N m c. 30 N m d. 11.25 N m
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9) Splitting up of a force into two mutually perpendicular components is called the a. determination of that force b. subtraction of the forces c. resolution of that force d. line of action of that force
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10) A body is in equilibrium if it moves with a. uniform velocity b. constant velocity c. uniform acceleration d. constant acceleration
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