Statics and Dyn...

A ball is dropped from a height h above a horizontal plane. If the coefficient of restitution is e, through what height will the ball rebound?

If in a projectile motion range R is maximum, then relation between H and R is

Three forces P, Q, R acting at a point in a plane. The angle between P and Q, Q and R are 150° and 120° respectively, then for equilibrium, forces P, Q, R are in the ratio

Forces of magnitudes 5 N, 10 N, 15 N and 20 N act on a particle in the direction of North, South, East and West, respectively. The magnitude of their resultant is

Three forces of magnitudes 30, 60 and P acting at a point are in equilibrium. If the angle between the first two is 60°, then the value of P is

If two equal components (P) of a force (F) are acting at an angle 120°, then F is equal to

If 3P and 4P are resultant of a force 5P, then angle between 3P and 5P is

A particle starting from a point A and moving with a positive constant acceleration along a straight line reaches another point B in time T. Suppose that the initial velocity of the particle is u > 0 and P is the mid-point of the line AB. If the velocity of the particle at point P is v₁ and if the velocity at time T / 2 is v₂ , then

If the displacement, velocity and acceleration of a particle at time t is x, v and f respectively, then which one is correct?