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What is the example in which gravity speeds up a moving object?
AwaiHashiba
If you are on a skateboard going x miles per hour, and you come across a downhill slope, your velocity will increase as you go down the hill.
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∙ 9y ago
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Which gravity speeds up a moving object?
Gravity will speed up a force if gravity acts in the same direction as the object is already moving - for example, if the object is already moving downward - and if counterforces (such as air resistance) don't interfere too much.
Not a practical example of gravity acting on a moving object?
A car speeds up as a trafic light turns green.
What happens when a moving object speeds up slows down or changes directions is it acelleration?
what happens when a moving object speeds up,slows down,or changes direction?
How does friction affect objects?
2 ways:it heats up the object as it skids or speeds along, often causing the object to melt slightly or completely.it slows the object down due to gravity.
Can gravity and friction speed up and slow down and change the direction of an object?
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.
Which gravity speeds up a moving object?
Gravity will speed up a force if gravity acts in the same direction as the object is already moving - for example, if the object is already moving downward - and if counterforces (such as air resistance) don't interfere too much.
What is a practical example of gravity acting on a moving object?
A car speeds up as a traffic light turns green.
Not a practical example of gravity acting on a moving object?
A car speeds up as a trafic light turns green.
What happens when a moving object speeds up slows down or changes directions is it acelleration?
what happens when a moving object speeds up,slows down,or changes direction?
Why does an object accalerate when it falls toward earth surafce?
Gravity speeds it up
What is the average speed of an object moving constant in a circle?
An object can move in a circle at different speeds.
Would there be gravity on a space ship in open space moving at high speeds and if so in what direction would it move?
No only when in earth's atmoshpere can the gravity be on.
How does friction affect objects?
2 ways:it heats up the object as it skids or speeds along, often causing the object to melt slightly or completely.it slows the object down due to gravity.
How do things fall in outer space?
They are not actually falling. They are moving at very fast speeds relative to other objects. They are also being attracted or "nudged by much larger object by gravity. They don't - falling is only done in relation to another body
What does a change in an object's motion mean?
It means at least one of these things happens: -- the object speeds up -- the object slows down -- the object keeps moving at the same speed, but turns to a different direction
Can gravity and friction speed up and slow down and change the direction of an object?
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.
How the cumulative effect of gravity and air resistance is related to an object's terminal velocity?
When an object is in free fall, it is accelerating toward the Earth because of the force of gravity (Newton's second law says Force = mass*acceleration, so we know there is acceleration). However, air resistance is a drag force, which is the resistance that air molecules give to the moving object; this force increases as the object's speed increases. Eventually, this air resistance will be high enough when the object is at its terminal velocity that it will be equal in magnitude and opposite in direction to the force of gravity. The net force is therefore zero, so the object does not change speeds. (However, it might as the force of gravity increases slightly as the object falls further, and also as the density of air changes on the way down through the atmosphere.)
