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GravityGravity can do all three to an object, the best example of this would be tossing a ball straight up in the air: 1) It initially slows down to a halt at the highest point of ascent, 2) Then speeds up as it falls 3) And of course it changes directions at the top. FrictionFriction, however, is a different matter. Friction that deals with motion (dynamic friction) always acts in the opposite direction of motion; therefore, it cannot accelerate an object in the same direction as it is moving. Due to this, friction can only slow down an object. Can it reverse the direction of motion? Since it cannot speed up an object, it cannot make an object move after friction has slowed it down to a standstill like gravity can from the example above.

Thus, in conclusion: gravity can slow down, speed up an object and change its direction; however, friction can only slow down an object.

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Q: Can gravity and friction speed up and slow down and change the direction of an object?
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Related questions

What force causes an object to change direction?

gravity (up to down) friction


What force causes object to change direction?

gravity (up to down) friction


Does the mass of an object affect friction-?

Yes Friction=Reaction force x COF Reaction force = mass x gravity So Friction=mass x gravity x COF ^ Change the mass, change the friction


How do you apply friction?

Friction acts in the opposite direction that the object is moving or trying to move. The force of friction is calculated by multiplying the normal force of the object, usually mass times gravity, by the coefficient of friction.


Is force necessary to change the speed or direction of a body?

Yes, force is necessary to change any motion of an object. The force can, for example be gravity or friction. Without these two factors, an object would continue moving in its original velocity (speed and direction) in eternity.


Type of force can cause an object to change direction?

Any force will cause change in velocity (speed and/or direction)if it isn't canceled by an equal, opposite force.


What is the 6 things that forces can do?

Force can: * Move an stationary object * Speed up * Slow down a moving object * Change the direction of a moving object * Stop a moving object * Change the shape of an object Hope this is useful to you!


What happens if you throw a rock where gravity and friction have no influence?

If no force (gravity, friction, or any other force) acts on an object, it will continue moving indefinitely, without changing its velocity (i.e., speed and direction).


What direction does friction act in to an object's direction of motion?

Friction will always act in the direction opposite of the relativistic motion of two objects. If object A is moving to the right on object B, then object A will experience the friction to the left. However, object B will be moving to the left on object A and will therefore experience the friction acting towards the right.


The what of an object changes if the force of gravity changes?

The weight of the object would change if gravity changes. cw: Yes, if the FORCE of gravity changes, the FORCE of the object in the downward direction changes.


How the direction of the force of kinetic friction is related to the direction of an object's motion?

Friction force works against the motion of the object. In other words friction force has the opponent direction of the velocity of the object.


The name of the froces that slows objects moving through air?

There are two forces that will slow an object moving through the air. The first is friction due to the air and the second is gravity. However, in the case of gravity, it only acts to change the component of the object's velocity in the vertical direction.