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  • Question

  • The angle of friction is :


  • Options
  • A. The ratio of the friction and the normal reaction
  • B. The force of friction when the body is in motion
  • C. The angle between the normal reaction and the resultant of normal raction and limiting friction
  • D. The force of friction at which the body is just about to move.

  • Correct Answer
  • The angle between the normal reaction and the resultant of normal raction and limiting friction 

    • Applied Mechanics problems

    Search Results

    • 1. A square hole is made in a circular lamina, the diagonal of the square is equal to the radius of the circleas shown in below figure the shift in the centre of gravity is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 2. The force acting on a point on the surface of a rigid body may be considered to act

    • Options
    • A. at the centre of gravity of the body
    • B. on the periphery of the body
    • C. on any point on the line of action of the force
    • D. at any point on the surface normal to the line of action of the force.
      • Discuss
    • 3. If two bodies of masses M1 and M2(M1 > M2) are connected by alight inextensible string passing over a smooth pulley, the tension in the string, will be given by

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 4. The resultant of two forces acting at right angles is 5 kgf and if they act at an angle of 60°, it is 37 kgf. The magnitudes of the forces are :

    • Options
    • A. 2 kgf, 3 kgf
    • B. 3 kgf, 4 kgf
    • C. 4 kgf, 5 kgf
    • D. 5 kgf, 3 kgf.
      • Discuss
    • 5. A ball is dropped from a height of 2.25 m on a smooth floor and rises to a height of 1.00 m after the bounce. The coefficient of restitution between the ball and the floor is

    • Options
    • A. 0.33
    • B. 0.44
    • C. 0.57
    • D. 0.67
      • Discuss
    • 6. The motion of a particle is described by the relation x = t2- 10t + 30, where x is in metres and t in seconds. The total distance travelled by the particle from t = 0 to t = 10 seconds would be

    • Options
    • A. zero
    • B. 30 m
    • C. 50 m
    • D. 60 m
    • E. none of these.
      • Discuss
    • 7. The member which does not carry zero force in the structure shown in below figure, is

    • Options
    • A. ED
    • B. DC
    • C. BC
    • D. BD.
      • Discuss
    • 8. The resultant of two forces acting at right angles is 34 kg and acting at 60° is 70 kg. The forces are

    • Options
    • A. 1 kg and 4 kg
    • B. 2 kg and 3 kg
    • C. 3 kg and 5 kg
    • D. 3 kg and 5 kg
    • E. 3 kg and 5 kg.
      • Discuss
    • 9. For a simple pendulum, time period for a beat, is

    • Options
    • A. ?l/g
    • B. ?2l/g
    • C. ?g/2l
    • D. ?l/2g
    • E. ?2g/l.
      • Discuss
    • 10. For the given values of initial velocity of projection and angle of inclination of the plane, the maximum range for a projectile projected upwards will be obtained, if the angle of projection is

    • Options
    • A. ? = -
    • B. ? = +
    • C. ? = -
    • D. ? = -
    • E. ? = -
      • Discuss

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