Why do balls roll downhill

Forces are vectors and have a direction and amagnitude. The force of gravity points straight down , but a ball rolling down a ramp doesn't go straight down , itfollows the ramp. If the ramp is horizontal, then the ball does not accelerate, as gravity pushes the ball into the ramp and not along the surface of the ramp. Hayar Panach Pundit.

Why don t heavier things fall faster? In real life, heavier objects sometimes fallfaster than light objects , but not because of gravity. Gravity makes all objects increase their speed at the samerate, regardless of how big they are. But if you drop 2 things outside, the air molecules may slow down one thingmore than another. Wilfred Bloemeke Pundit. What causes acceleration? In the simplest case, a force applied to an object atrest causes it to accelerate in the direction of the force.

For a massive body moving in an inertial reference frame withoutany other forces such as friction acting on it, a certain impulsewill cause a certain change in its velocity. Lindsay Urbiztondo Pundit. What force causes a ball to roll?

The surface incontact moves in opposite direction or backwards, causing the ball to roll. Saidi Elcacho Pundit. Will 2 objects of different weight fall at the same speed? Hence any two objects that are subject only to the force of gravity will fall with the same acceleration and hence they will hit the groundat the same time. Mitra Santa Barbara Teacher. Do heavier objects fall faster in air?

Galileo discovered that objects that are moredense, or have more mass, fall at a faster rate thanless dense objects , due to this air resistance. Afeather and brick dropped together. Air resistance causesthe feather to fall more slowly. Hong Endmann Teacher. How fast does something fall? Near the surface of the Earth, an object in free fall in a vacuum will accelerate at approximately 9. Momna Luyando Teacher. Do all objects fall at the same speed? As such, all objects free fall at the samerate regardless of their mass.

Because the 9. Alejos Ralf Teacher. What kind of energy is a ball rolling down a hill? As the car begins to roll down the hill ,it loses potential energy , but gains kinetic energy. The potential energy of the position of the car at the topof the hill is getting converted into kinetic energy.

Floris Floris k 12 12 gold badges silver badges bronze badges. Both are directly proportional and radius is constant. How can you compare parameters with different dimensions.. Show 4 more comments. Abhijeet Abhijeet 1 1 silver badge 12 12 bronze badges. Other way to say it is that the ball will topple over its surface if the initial shooting speed it considerably high. What do you wish to ask.. Show 1 more comment.

Jaywalker Jaywalker 2, 12 12 silver badges 25 25 bronze badges. The two rounds per second is a random value this also works algebraically. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. Featured on Meta. Now live: A fully responsive profile. Linked 0.

Related 2. Hot Network Questions. Afeather and brick dropped together. Air resistance causesthe feather to fall more slowly. Hong Endmann Teacher. How fast does something fall? Near the surface of the Earth, an object in free fall in a vacuum will accelerate at approximately 9.

Momna Luyando Teacher. Do all objects fall at the same speed? As such, all objects free fall at the samerate regardless of their mass. Because the 9. Alejos Ralf Teacher. What kind of energy is a ball rolling down a hill? As the car begins to roll down the hill ,it loses potential energy , but gains kinetic energy. The potential energy of the position of the car at the topof the hill is getting converted into kinetic energy. Danute Olschewsky Reviewer.

What forces cause an object to roll down an incline? The parallel component of the force of gravity isnot balanced by any other force. This object willsubsequently accelerate down the inclined plane due to thepresence of an unbalanced force.

It is the parallelcomponent of the force of gravity that causes thisacceleration. Fatah Arasetegui Reviewer. How does ramp height affect speed? To investigate into how the height of a rampaffects the speed of a toy car rolled down it. So that as the ramp increases, thevelocity will also increase.

Karoline Machi Reviewer. Does a heavier object hit the ground first? It will probably be closer than you think but the heavier baseball will indeed hit the groundfirst.

Your initial thoughts would be confirmed. Heavier things do indeed fall faster. Here is the first classic example. Yihui Gonzalez Roman Reviewer. Does Weight Affect downhill speed?

Smaller increases in weight a few kilograms etc will increase your speed downhill somewhat.. Yes in some sense. It's like some skiers try to get more weight in order to get extra velocity. Ask A Question.