Q. Which of the following statement is correct in connection with projectiles?

View solution

Q. The acceleration of a body sliding down an inclined surface is

View solution

Q. If a body is acted upon by a number of coplaner non-concurrent forces, it may

View solution

Q. The angle which the normal reaction makes with the resultant reaction is called angle of friction.

View solution

Q. Which of the following statement is correct?

View solution

Q. The law of the machine is(where P = Effort applied to lift the load, m = A constant which is equal to the slope of the line, W = Load lifted, and C = Another constant which represents the machine friction.)

View solution

Q. The velocity of a body on reaching the ground from a height h, is

View solution

Q. The velocity ratio of a simple wheel and axle with D and d as the diameters of effort wheel and load axle, is

View solution

Q. The unit of force in S.I. system of units is

View solution

Q. The moment of inertia of a solid cone of mass m and base radius r about its vertical axis is

View solution

Q. A body is said to move or vibrate with simple harmonic motion if its acceleration is directed towards the mean position.

View solution

Q. A ladder is resting on a rough ground and leaning against a smooth vertical wall. The force of friction will act

View solution

Q. A ladder is resting on a smooth ground and leaning against a rough vertical wall. The force of friction will act

View solution

Q. The length of a second's pendulum is

View solution

Q. The slope on the road surface generally provided on the curves is known as

View solution

Q. Coplaner non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.

View solution

Q. The moment of inertia of a rectangular section 3cm wide and 4cm deep about X-X axis is

View solution

Q. The moment of inertia of a thin rod of mass m and length l,about an axis through its centre of gravity and perpendicular to its length is

View solution

Q. When a body of mass m attains a velocity v from rest in time t, then the kinetic energy of translation is

View solution

Q. The unit of angular velocity is

View solution