Engineering Mechanics - Section 1 (4)

The mechanical advantage of a lifting machine is the ratio of

The range of a projectile is maximum, when the angle of projection is

The frequency of oscillation of a torsional pendulum is

The total time taken by a projectile to reach maximum height and to return back to the ground, is known as time of flight.

In the shown figure, if the angle of inclination of the plane is increased, then acceleration of the system will

The force required to move the body up the plane will be minimum if it makes an angle with the inclined plane __________ the angle of friction.

The above figure shows the two equal forces at right angles acting at a point. The value of force R acting along their bisector and in opposite direction is

If a number of forces are acting at a point, theirresultant will be inclined at an angle θ with the horizontal, such that