Point where whole weight of body acts vertically is called

  • center of mass
  • midpoint
  • center of gravity
  • center of volume

The forces that are parallel to each other and have the opposite direction are called

  • negative forces
  • unlike parallel forces
  • like parallel forces
  • positive forces

A force of 10 N is making an angle of 30 ° with the horizontal. Its horizontal component will be

  • 4 N
  • 5 N
  • 7 N
  • 10 N

Racing cars are made stable by

  • decreasing their mass
  • increasing their speed
  • lowering their center of gravity
  • decreasing their width

If the net force acting on the body is zero then the body is said to be

  • imbalanced
  • balanced
  • in equilibrium
  • not in equilibrium

The total torque produced in opening a nut from spanner is

  • F * AB
  • F * A
  • F * B
  • A * B

The weight of 10apples in a bag is an example of

  • like parallel forces
  • unlike parallel forces
  • force of tension
  • friction

If no net force is applied on a body, then it is said to be in

  • distance
  • equilibrium
  • linear motion
  • motion

In the graphical method for the addition of forces, forces are added by

  • Cramer rule
  • head to tail rule
  • to and fro rule
  • fraction rule

The torque depends upon

  • force only
  • moment arm only
  • mass
  • force and momentum arm

Along which a force act is called

  • line of action of force
  • line of acting torque
  • axis of rotation
  • moment arm

The splitting of vectors into two components is called

  • addition of vectors
  • division of vectors
  • resolution of vectors
  • multiplication of vectors

Using trigonometric ratios, for a right angle triangle tanθ is equal to

  • Perpendicular ⁄ Hypotenuse
  • Base ⁄ Hypotenuse
  • Hypotenuse ⁄ Base
  • Perpendicular ⁄ Base

If after a slight tilt the body returns to its previous equilibrium, then it is said to be in

  • zero equilibrium
  • stable equilibrium
  • unstable equilibrium
  • neutral equilibrium

If 150N of farce is applied on a spanner of 10 cm to open a nut then the length of spanner when the force applied on it is 60 N is

  • 25 cm
  • 80 cm
  • 40 cm
  • 50 cm

If after a slight tilt the body does not return to its previous equilibrium, then it is said to be in

  • unstable equilibrium
  • stable equilibrium
  • zero equilibrium
  • neutral equilibrium

The Greek letter used for summation is

  • sigma(&sigma);
  • μ
  • π
  • ω

The perpendicular distance between the axis of rotation and the line of action of the force is called the

  • moment arm
  • inertia
  • velocity
  • displacement

A nut has been tightened by a force of 180 N using an 8 cm long spanner. What length of a spanner is required to loosen the same nut with 150 N force

  • 11 cm
  • 8.5 cm
  • 9.6 cm
  • 10.9 cm

A force of 120 N is applied perpendicularly on a spanner at a distance of 9 cm from a nut. The torque produced by the force will be

  • 12 Nm
  • 10.8 Nm
  • 15 Nm
  • 12.59 Nm
0 h : 0 m : 1 s

Answered Not Answered Not Visited Correct : 0 Incorrect : 0