Q. The cartesian equation of trajectory is(where u = Velocity of projection, α = Angle of projection, and x, y = Co-ordinates of any point on the trajectory after t seconds.)

View solution

Q. In collision of elastic bodies, the coefficient of restitution is the ratio of the relative velocity after impact to the relative velocity before impact.

View solution

Q. The acceleration of a particle moving with simple harmonic motion is proportional to the displacement of the particle from the mean position.

View solution

Q. The unit of moment of inertia of an area is

View solution

Q. A pendulum which executes one beat per second is known as

View solution

Q. D' Alembert's principle basically depends upon Newton's second law of motion.

View solution

Q. The forces, whose lines of action are parallel to each other and act in the same directions, are known as

View solution

Q. A number of forces acting at a point will be in equilibrium, if

View solution

Q. The kinetic energy of a body __________ upon its mass and velocity.

View solution

Q. According to Newton's first law of motion,

View solution

Q. The moment of inertia of a square of side (a) about an axis through its centre of gravity is

View solution

Q. The velocity ratio of a single purchase crab winch can be increased by

View solution

Q. The motion of a wheel of a car is

View solution

Q. For any system of coplaner forces, the condition of equilibrium is that the

View solution

Q. The ratio of static friction to dynamic friction is always

View solution

Q. A science teacher claimed that Newton's third law of motion is involved while studying the motion of rockets. His statement is

View solution

Q. One kg force is equal to

View solution

Q. Coefficient of friction depends upon

View solution

Q. Which of the following statement is correct?

View solution

Q. The velocity ratio of a differential wheel and axle with D as the diameter of effort wheel and d1,and d2 as the diameters of larger and smaller axles respectively, is

View solution