0
A 2 kg ball sits at the top of a 3.2 m hill How fast does it move at the bottom of the hill?
This is an application of energy equations. Take the equation where it sets the Gravitational Potential energy (GPE) equal to the kinetic energy equation (KE) because you are trying to find velocity or how fast it moves to the bottom of the hill.
mgh = 1/2mv²
I will assume you know what each letter stands for, and that 10 is gravity.
2(10)(3.2) = (.5)(2)v²
64 = (1)v² or just 64 = v²
Take the square of 64, and that is your answer.
What else can I help you with?
Will a ball roll down a hill faster or slower if you add oil to it?
Adding oil to a ball will likely make it roll down a hill faster because the reduced friction between the ball and the surface will make it easier for the ball to move.
Why does a ball roll down a hill?
A ball rolls down a hill due to the force of gravity pulling it downward. Gravity is a natural force that attracts objects towards each other, causing the ball to move in the direction of the slope.
When a ball rolls down a hill and gains momentum is the law of momentum conservation violated?
No it is not! The hill is moving in the opposite direction. You do not perceive the motion of the hill since it move sooo slowly... When the ball will stop with respect to the hill (for instance because of an obstacle rigidly connected to the hill) then the hill will stop too. And the potential energy of the ball will be transformed into heat and sound.
How is a stretched rubber band similar to a ball on top of a hill?
Both a stretched rubber band and a ball on top of a hill have potential energy stored up due to their position or shape. When released, they both have the ability to convert this potential energy into kinetic energy as they move.
What are some inertia practice problems that can help me better understand the concept of inertia?
One example of an inertia practice problem is a car suddenly stopping and the passengers continuing to move forward. Another example is a ball rolling down a hill and continuing to move even after reaching the bottom. These scenarios demonstrate the concept of inertia, which is the tendency of objects to resist changes in their motion.
Does the size of the ball effect how fast it rolls?
The size of a ball does affect how fast it rolls. Surface also play a major role in how fast a ball will move.
Will a ball roll down a hill faster or slower if you add oil to it?
Adding oil to a ball will likely make it roll down a hill faster because the reduced friction between the ball and the surface will make it easier for the ball to move.
What happens when you hit the white ball with the cue?
When you hit the white ball, the kinetic energy created from moving the cue, is transferred to the white ball on contact. This causes the ball to move, and depending on how fast you move the cue, will cause the white ball to move at different velocities.
Why does a ball roll down a hill?
A ball rolls down a hill due to the force of gravity pulling it downward. Gravity is a natural force that attracts objects towards each other, causing the ball to move in the direction of the slope.
Jose tossed a ball upward in the air after a while the ball falls downwardwhat makes it move fast as it approaches he ground?
Gravitational pull.
How is agility used in real life?
agility can be used in many sports to move fast a with the ball of to get to some thing or around thing at a fast pace
When a ball rolls down a hill and gains momentum is the law of momentum conservation violated?
No it is not! The hill is moving in the opposite direction. You do not perceive the motion of the hill since it move sooo slowly... When the ball will stop with respect to the hill (for instance because of an obstacle rigidly connected to the hill) then the hill will stop too. And the potential energy of the ball will be transformed into heat and sound.
How do you beat level 5c on Epsilon?
5c:pretty tough =o 1) there should be 2 exits at the bottom left, so put on portal in each, then let go of the ball 2) The ball will bounce/roll and pass the 2 point things, and the moment it passes through the second, pause and restart the whole thing (this is to make sure the ball will fall straight). 3) move the left bottom portal,(which is facing right) to the top right exit (which is facing down), then let go of the ball. Let it go through the portal, and by the time it has gone through and is about to touch the bottom, pause the ball, and move the bottom left portal to the exit that is facing the other portal 4) let it gain some speed, and once it cant go much faster, pause the ball. 5) leave the bottom right portal alone, and move the other one at the bottom left, the exit *facing* the blackhole thing. The speed will catch it, and it will teleport the ball to the last point thing 6) reverse every thing to the start, and move the bottom right portal to the top left, the one almost facing the finish, then let go of the ball.
What is the answer to puzzle 80 in Professor Layton and the Diabolical Box?
This puzzle is also know as The Elevator Switch. Enter the Gate on the Left. Check the bottom hole in the bricks on the right, the top of the metal pipe leaning on the back right wall, and the mound of dirt on the left for hint coins. Try to go down to the elevator. 1 move right purple up one space. 2 move top blue up and right 3 move bottom blue right 4 move bottom green right and up 5 move bottom blue left 6 move bottom green down and right 7 move bottom blue right 8 move left purple down one space 9 move top green right, down and left 10 move blue ball up and left 11 move red ball down 12 move blue ball right and up. You next puzzle number could be 81, The Old Safe.
How do the sand dollars move?
not fast at all they are verry slow you have to look at them carefully just to see one move
How do you direct a ball in a girls lacrosse draw?
When you move your stick, go very fast "up & out" in the direction of one of your wings.
Which has a larger wavelength a slow moving photon or a fast moving golf ball?
A slow moving photon has a longer wavelength compared to a fast moving golf ball. Wavelength is inversely proportional to speed, so the slower the object, the longer the wavelength.
