After the back spin wears off, the cue ball will slide until friction causes the cue ball to start to roll. If the cue ball hits an object ball when it is sliding, and the contact is full , the cue ball will stop.
What causes the billiard balls to move in pool?
The physics behind billiards (or the physics behind pool), in large part, involves collisions between billiard balls. When two billiard balls collide the collision is nearly elastic . An elastic collision is one in which the kinetic energy of the system is conserved before and after impact.
Why did billiard ball not move?
When all of the objects are sitting still, they have potential energy. Without a collision (an external force) the objects will not move . ... The harder this group of billiard balls is hit the more energy is transferred to them and the more they will speed up and move.
Why does a billiard ball stop short when it collides?
Once Ball 1 hits Ball 2, it immediately starts accelerating it at the same rate that it decelerates. In other words, Ball 1 exerts the same force on Ball 2 that Ball 2 exerts on Ball 1. In this way, momentum is conserved , so that for any amount of momentum that Ball 2 gains, Ball 1 loses.
What is the reaction force in billiards?
The force acting on the ball has two components. One is the normal reaction force , N, acting in a direction perpendicular the surface. The other is the friction force, F, acting parallel to the surface. The two forces together have a resultant or total value T which acts in the squirt direction – or vice versa.
What happens when two moving objects hit each other?
When two objects collide, each object pushes the other . ... Newton’s third law states that when one object exerts a force on another, the second object exerts an equal but opposite force on the first object. These forces are sometimes called action force andreaction force or force pairs.
Could a bee fly fast enough to crash into and stop a moving bowling ball?
True or False: A bee flying at the speed of sound could stop a 10-lb. bowling ball rolling slowly? (Answer: True. It could stop a bowling ball rolling up to 10 mph.)
How low can you hit a cue ball?
As illustrated in Diagram 1a, the miscue limit is generally accepted to be half the ball’s radius (0.5R) from center . It just so happens that many pool balls have a stripe width that is very close to half the ball’s diameter.
When two billiard balls collide which is always conserved?
When two objects collide, they interact during the collision and the elastic forces that arise upon contact of the two objects with each other provide the change in object’s velocity and/or direction of motion. However, total momentum and masses of two objects are usually conserved in collisions.
Why do climbers prefer nylon ropes?
Nylon ropes, which stretch considerably under tension, are favored by mountain climbers because they stretch and take time in coming to a stop when mountain climbers accidentally fall .
Why is it hard to stop a supertanker?
The mass of the supertanker is very large . Due to this reason, the momentum of the supertanker is very large with any value of the velocity. Hence, huge amount of force us required over large time to bring it to a stop.
Would you be safe firing a gun that has a bullet 10 times as massive as the gun Why why not?
Would you be safe in firing a gun that has a bullet 10 times as massive as the gun? Explain. No. The gun would recoil with a speed ten times the muzzle velocity.
Is pool geometry or physics?
Pool, or pocket billiards, is a game of mathematics and physics . The basic goal of play is to deposit balls into the pockets by hitting them with the cue ball. How the player strikes the cue ball (how hard, where, and in which direction) determines how the cue ball will interact with the other balls.
Which law explains what happens when a cue ball hits a group of motionless balls on a pool table?
Newton’s First Law
The motions of pool balls, a paper clip, the Moon, and Earth are all described by Newton’s laws of motion. Newton’s first law of motion states that an object at rest tends to stay at rest, and an object in motion tends to stay in motion with the same velocity, unless an unbalanced force acts on it.
What is the motion of billiard ball?
The ball, as we mentioned above, will have a spin and a sliding motion at the very start. the velocity of P. = rotation velocity at P. i.e. the moment when the sliding ceases and the ball has a pure rolling motion where v = Rω..
