How do you find the tension on a rope?
We can think of a tension in a particular rope as T = (m × g) + (m × a), where “g” is the acceleration due to the gravity of all objects the rope supports and “a” is any other acceleration is on all objects that the rope supports.
What is the tension in each string?
In physics, tension is described as the tensile force transmitted axially through a string, cable, chain, or similar one-dimensional continuous object, or through each end of a rod, truss member, or similar three-dimensional object; tension can also be described as the action-reaction pair of forces acting on…
Can a rope have different tensions?
You cannot assume the same tension everywhere if the pulley is not “massless” (assuming the rope does not slide over the pulley. Even if the rope is not stiff (for example if it is an elastic rubber band) you will feel a different tension in the rope when adding a load at one end over a pully, as long as it is stretched.
Can pure rolling happen without friction?
There may be friction when rolling without slipping, but it does not produce any work. However, friction is needed to produce changes in the object’s angular velocity. If an object rolls on a plane, there need not be any frictional force.
Can a body roll without friction?
The force due to friction does not necessarily work against the movement of the body, but acts against slipping or sliding along the contact surface. A body can roll without slipping. Likewise, torques due to friction are not necessarily against the rotation of a body (consider a wheel or pulley driven by a belt).
What is a Fushigi?
The Fushigi is really just a reflective metal sphere surrounded by a thick layer of crystal clear acrylic. When you hold the ball, the acrylic gives the impression that you are not making contact with the ball. But contact is essential. In fact, this art is called contact juggling. And it is an art.
How does a magician make a person levitate?
The levitation of a magician or assistant can be achieved through a hidden platform or hidden wires, or in smaller illusions by standing on the toes in a way that hides the foot touching the ground.
What is a gravity ball?
A gravity bong, also known as a geeb, is a method of consuming cannabis that uses two empty plastic bottles to pass smoke through water and push it into the consumer’s lungs. Unscrew the cap, place your mouth over the opening of the bottle and push the bottle down so that gravity forces the cannabis smoke into your lungs.