Q. The angle of projection for a range is equal to the distance through which the particle would have fallen in order to acquire a velocity equal to the velocity of projection, will be

View solution

Q. A particle executes a simple harmonic motion. While passing through the mean position, the particle possesses

View solution

Q. Varigon's theorem of moments states

View solution

Q. One half of a vibration of a body, is called

View solution

Q. On a ladder resisting on a smooth ground and leaning against a rough vertical wall, the force of friction acts

View solution

Q. The acceleration of a particle moving along the circumference of a circle with a uniform speed, is directed

View solution

Q. From the circular plate of a diameter 6 cm is cut out a circular plate whose diameter is equal to radius of the plate. The c.g. of the remainder shifts from the original position through

View solution

Q. A glass ball is shot to hit a wall from a point on a smooth floor. If the ball returns back to the point of projection in twice the time taken in reaching the wall, the coefficient of restitution between the glass ball and the wall is

View solution

Q. Kinetic friction may be defined as

View solution

Q. ω rad/sec is the angular velocity of a crank whose radius is r. If it makes θ° with inner dead centre and obliquity of the connecting rod l is φ, the velocity v of the piston, is given by the equation

View solution

Q. According to Kennedy's theorem, if three bodies have plane motions, their instantaneous centres lie on

View solution

Q. A ball of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/sec hits an identical stationary ball B on the table. If the impact is perfectly plastic, the velocity of the ball B just after impact would be

View solution

Q. If two forces each equal to T in magnitude act at right angles, their effect may be neutralised by a third force acting along their bisector in opposite direction whose magnitude will be

View solution

Q. Energy may be defined as

View solution

Q. The intrinsic equation of catenary is

View solution

Q. A ball which is thrown upwards, returns to the ground describing a parabolic path during its flight

View solution

Q. Angular acceleration of a particle may be expressed as

View solution

Q. A train weighing 196 tonnes experiences a frictional resistance of 5(11/22) per tonne. The speed of the train at the top of a down gradient 1 in 78.4 is 36 km/hour. The speed of the train after running 1 km down the slope, is

View solution

Q. A stone is whirled in a vertical circle, the tension in the string, is maximum

View solution

Q. Periodic time of body moving with simple harmonic motion, is

View solution