When you whirl a ball at the end of a string, the ball seems to be pulling outward away from your hand.?

Question

When you let the string go, however, the ball moves along a straight path perpindicular to the direction of the string at the moment you let go. Explain each of these effects.

Answer 1

The first effect is centifugal force. It is caused by the answer of the second question where the ball goes in a straight line. The ball moving on it's own will continue in a straight line due to inertia unless an outside force acts upon it (the string). The ball swings at the end of the string because it is trying to go straight, which would carry it away from you, but the string keeps it turning. The same effect happens to space craft in orbit. They go in a circle and would go off in a straight line except that gravity holds them.

Answer 2

the first sensation is the centrifical force cause by the energy of the movement of the whirling and the restraint of the string. The ball is being tossed away and held back at the same time. ( like a sateelite in reverse, which is falling and going away at the same time in equal part) Letting go of the string allows the circular force to convert to a momentum that is no longer centrifical because the circular motion caused by the strings restraint has disappered. It then proceeds forever out at a straight line under the law of enertia, unless or until it meets another force to slow it down stop it or change it, such as gravity, friction or an obstacle.

Answer 3

The outward force is centrifugal force. It is a reaction to the force your hand exerts on the ball (via the string) to keep the ball moving in a circle.

Newton's first law says:
"Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it."

By uniform motion, he means a straight line. As soon as you let go of the string, the ball continues moving in the direction it was heading, which is tangential to the circle.

Answer 4

Centerfuigal Force is the force that you feel when yo'ure spinning it. its the reaction of the motion along the string.

When you let it go, it follows newton's first law of motion. An object moving in a direction will continue in that direction unless acted upon by an outside force.

Answer 5

Inertia. Pure and simple.