Gravitation
Why do things fall down? Why must we apply effort to make things go up? Do all things fall down at the same rate? Why do we not use an…
Power and Energy
In electrical engineering, we come across the terms power and energy often. As laymen, we use these terms interchangeably. Are they same or is there a difference? Let us see.We…
Moment of Force (Torque)
We see movement all around. Some of them are linear, that is, along a line. And many are rotational. Let us see the force behind rotational movement and what makes…
Exercises – Moment of Force
1. A door is 3 feet wide. Calculate the moment of force when a force of 100 N is applied ata. the end of the door b. the middle of…