Moment of inertia of a squares of side ‘b’ about an axis through its centre of gravity, is b³/4 b⁴/8 b⁴/3 b⁴/12 TRUE ANSWER : ? YOUR ANSWER : ?
The total time of collision and restitution of two bodies, is called Time of collision All listed here Period of collision Period of impact TRUE ANSWER : ? YOUR ANSWER : ?
One end of a light string 4 m in length is fixed to a point on a smooth wall and the other end fastened to a point on the surface of a smooth sphere of diameter 2.25 m and of weight 100 kg. The tension in the string is 22.5 kg 25 kg 19.5 kg 17.5 kg TRUE ANSWER : ? YOUR ANSWER : ?
The Law of Polygon of Forces states that If forces acting on a point can be represented of a polygon taken in order, their sides of a polygon taken in order, their resultant will be represented in magnitude and direction by the closing side If forces acting on a point can be represented in magnitude and direction by the sides of a polygon in order, the forces are in equilibrium If a polygon representing the forces acting at point in a body is closed, the forces are in equilibrium If forces acting on a point can be represented in magnitude and direction by the sides of a polygon taken in order, then the resultant of the forces will be represented in magnitude and direction by t TRUE ANSWER : ? YOUR ANSWER : ?
The velocity ratio of an inclined plane of inclination ‘θ’ with horizontal for lifting a load is sin θ tan θ cos θ cosec θ TRUE ANSWER : ? YOUR ANSWER : ?
If ‘l’ is the span of a light suspension bridge who’s each cable carries total weight (w) and the central dip is ‘y’, the horizontal pull at each support, is wl/4y wl/8y wl/2y wl TRUE ANSWER : ? YOUR ANSWER : ?
Two objects moving with uniform speeds are 5 m apart after 1 second when they move towards each other and are 1 m apart when they move in the same direction.The speeds of the objects are: 3 m/sec and 3 m/sec 4 m/sec and 6 m/sec 3 m/sec and 2 m/sec 2 m/sec and 2 m/sec TRUE ANSWER : ? YOUR ANSWER : ?
A ball moving with a velocity of 5 m/sec impinges a fixed plane at an angle of 45° and its direction after impact is equally inclined to the line of impact. If the coefficient of restitution is 0.5, the velocity of the ball after impact will be 3.5 m/sec 2.5 m/sec 0.5 m/sec 1.5 m/sec TRUE ANSWER : ? YOUR ANSWER : ?
In case of S.H.M. the period of oscillation (T), is given by T = 2π/ω T = 2/ω T = 2ω/π² T = π/2ω TRUE ANSWER : ? YOUR ANSWER : ?
A system of coplanar forces acting on a rigid body can be reduced to None of these One force only One couple only One force and one couple only TRUE ANSWER : ? YOUR ANSWER : ?