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What is the change in momentum of an 8kg bowling ball moving at 2 meters per second that bounces off a spring at the same speed that it had before bouncing?
We have to assume that it exactly reverses its direction, so that a video of the whole
event would look exactly the same whether it's played forward or backward.
Momentum = m V
When the ball is approaching the spring, its momentum is mV = (8)(2) = 16 kg-m toward the wall.
After the bounce, the momentuim of the ball is mV = (8)(-2) = -16 kg-m toward the wall,
or +16 kg-m away from the wall.
The change in momentum is 32 kg-m .
We are momentarily chagrined at the realization that we can't figure out where
the 32 kg-m went/came from, to keep the initial and final vector momenta equal.
Hopefully another contributor will be able to pop in and put it to rest.
What else can I help you with?
Assume an 8 kg bowling ball moving at 4 m per s bounces off a spring at the same speed that it had before bouncing?
Then its kinetic energy is the same before and after the bounce . . . 64 joules . . . and its momentum has the same magnitude after as it had before . . . 32 kg-m/s . . . but in the opposite direction.
When object A collides with object B and bounces back its final momentum is its initial momentum?
This statement is consistent with the law of conservation of momentum. When object A collides with object B and bounces back, the total momentum of the system before the collision is equal to the total momentum of the system after the collision, assuming no external forces are involved. This means that the final momentum of object A after the collision is equal to its initial momentum.
When object A collides with object B and bounces back its final momentum is initial momentum?
in the opposite direction of
Explain how momentum is conserved when a ball bounces against a floor?
When a ball bounces against a floor, the total momentum of the ball and the floor system remains constant before and after the collision, assuming there are no external forces acting on the system. This is because the force exerted by the floor on the ball during the collision changes the direction of the ball's momentum without changing its magnitude.
What factors contribute to the bouncing of a ball?
The bouncing of a ball is influenced by factors such as the material of the ball, the surface it bounces on, the force with which it is thrown or dropped, and the elasticity of the ball. These factors determine how high the ball will bounce and how many times it will bounce before coming to a stop.
Assume an 8 kg bowling ball moving at 4 m per s bounces off a spring at the same speed that it had before bouncing?
Then its kinetic energy is the same before and after the bounce . . . 64 joules . . . and its momentum has the same magnitude after as it had before . . . 32 kg-m/s . . . but in the opposite direction.
How many times does a tennis ball bounce before it stops bouncing from different heights?
It bounces 134 times before it stops.
What if an onside kick bounces back?
As long as it goes 10 yards before bouncing back it is a legal kick
What is the control in this project-you are heating a ball and measuring how high it bounces then freezing the ball and bouncing it?
bouncing the ball at room temperature, before heating or freezing it, and then measuring the height of the bounce.
When object A collides with object B and bounces back its final momentum is its initial momentum?
This statement is consistent with the law of conservation of momentum. When object A collides with object B and bounces back, the total momentum of the system before the collision is equal to the total momentum of the system after the collision, assuming no external forces are involved. This means that the final momentum of object A after the collision is equal to its initial momentum.
When object A collides with object B and bounces back its final momentum is initial momentum?
in the opposite direction of
Explain how momentum is conserved when a ball bounces against a floor?
When a ball bounces against a floor, the total momentum of the ball and the floor system remains constant before and after the collision, assuming there are no external forces acting on the system. This is because the force exerted by the floor on the ball during the collision changes the direction of the ball's momentum without changing its magnitude.
What factors contribute to the bouncing of a ball?
The bouncing of a ball is influenced by factors such as the material of the ball, the surface it bounces on, the force with which it is thrown or dropped, and the elasticity of the ball. These factors determine how high the ball will bounce and how many times it will bounce before coming to a stop.
What is the bouncing ball physics equation used to calculate the trajectory of a ball as it rebounds off a surface?
The physics equation used to calculate the trajectory of a bouncing ball is the coefficient of restitution formula, which is given by the equation: v2 e v1, where v1 is the initial velocity of the ball before it bounces, v2 is the velocity of the ball after it bounces, and e is the coefficient of restitution that represents the elasticity of the collision.
A piece of putty moving with 1 unit of momentum strikes to a heavy bowling ball that is initially at rest After the putty sticks to the ball both are set in motion with a combined momentum that is?
equal to the initial momentum of the putty. This is based on the principle of conservation of linear momentum, which states that the total momentum before a collision is equal to the total momentum after the collision, assuming no external forces are acting on the system.
Does a bowling ball or a tennis ball have more inertia?
This can be a tricky question; before answering one like this ask for the frame of reference.If you are in a closet with a floating feather, and a ball on a shelf, and measure momentum relative to the closet, the feather will have more momentum than the bowling ball.However, if you look at the larger picture, you will find thatthe earth is rotatingthe earth is orbiting the sunthe sun is moving relative to other stars near usthe sun is orbiting our galaxyour galaxy is moving relative to other galaxies.Every one of these motions involves momentum, and the total momentum is shared out among everything on or in this planet in proportion to its mass. The bowling ball is enormously massive compared to the feather, and has vastly more momentum in the universal frame of reference.The answer is correct, but the last sentence is wrong. There is no universal frame of reference.
How can before and after situations be compared for collisions using the law of conservation of momentum?
The momentum before and after is the same, due to the Law of Conservation of momentum. Thus if you calculate the momentum before, then you have the after momentum or vice-versa.
