
Where weight, W, becomes negative since it is directed downwards. Considering all upward forces as positive and downwards as negative, our equation is: In equilibrium, these forces should all equate to zero. We use free-body diagrams to show the different directions and magnitudes of the forces that act on a body. We also assume that the masses or objects are in a vacuum and do not experience friction or air resistance towards their surroundings.įollowing Newton's Second Law of Motion, we can then express the summation of forces using the free-body diagram of the object, as shown on the right side of the illustration above. In this tension calculator, we also assume that ropes are massless and, therefore, do not contribute anything to the tension forces. This statement means that this tool only considers objects at rest in a given system. However, this tension calculator only determines the tension forces in cases of static equilibrium. If the object is moving at a different acceleration, we should use its actual acceleration for the calculation. Gravitational acceleration gives us the value of its weight in terms of force, like in Newtons or pound-force.
#WORK IN PHYSICS CALCULATOR WITH ANGLE FREE#
Cutting the rope will release the tension force and put the ball in free fall. What keeps the rope together is called the tension force.

In this situation, the rope is now in tension. You would still feel the ball's weight through the rope. Now imagine tying a rope around the ball, which you then use to lift the ball again.

You would feel the ball's weight in your hands because of the force of gravity acting on the ball's mass. Imagine that you pick up a basketball from the ground.
