SSC JE ME Quiz_ Engineering Mechanics Booster Quiz-9

Four forces P, 2P, 3P and 4P act along the sides taken along the sides of a square. The resultant force has the magnitude of

When a body is subjected to two forces, the body will be in equilibrium if the two forces are:

The force in the member PQ of the truss PQR is:

A straight rod of length L(t), hinged at one end and freely extensible at the other end, rotates through an angle θ(t) about the hinge. At time t, L(t) = 1 m, L(t) = 1 m/s,

θ(t) = π/4 rad and θ(t) = 1 rad/s. the magnitude of velocity of the other end is

A rubber ball is thrown vertically upward with a velocity u from the top of a building. It strikes the ground with a velocity 3u. The time taken by the ball to reach the ground is given by:

Find the centroid  of the given figure from the X-axis.

Which of the following is correct about angle of repose?