Curioustab

Home » Mechanical Engineering » Engineering Mechanics

A ladder is resting on a rough ground and leaning against a smooth vertical wall. The force of friction will act

downward at its upper end
upward at its upper end
zero at its upper end
perpendicular to the wall at its upper end

Correct Answer: zero at its upper end

← Previous Question Next Question→

More Questions from Engineering Mechanics

The efficiency of a lifting machine is the ratio of
The wheels of a moving car possess
Non-coplaner non-concurrent forces are those forces which
If the efficiency of a lifting machine is kept constant, its velocity ratio is __________ propotional to its mechanical advantage.
Two blocks A and B of masses 150 kg and 50 kg respectively are connected by means of a string as shown in the below figure. The tension in all the three strings __________ be same.
In collision of elastic bodies, the coefficient of restitution is the ratio of the relative velocity after impact to the relative velocity before impact.
The moment of inertia of a rectangular section 3cm wide and 4cm deep about X-X axis is
The three forces of 100 N, 200 N and 300 N have their lines of action parallel to each other but act in the opposite directions. These forces are known as
D' Alembert's principle basically depends upon Newton's second law of motion.
A pendulum which executes one beat per second is known as

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion