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Q: Why a greater force is needed to push a car up a ramp?
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How would the input force needed to push a wheelchair up a ramp change if you increase the height of the ramp but not its lenght?

The effort needed would increase.


How would the input force needed to push a wheelchair up a ramp change if you increase the height of the ramp but not its length?

The input force would increase as the height of the ramp increased. It wouldn't matter the distance. Ask me another one.


How would the input force needed to push a wheelchair up a ramp change if you increased the height of the ramp but not it's length?

The input force would increase as the height of the ramp increased. It wouldn't matter the distance. Ask me another one.


With how much force does a ramp push a ball rolling down it?

A ramp exerts no force, just gravity.


How can you decrease the effort force needed to push a weight to the top of the ramp?

Simply oil the ramp. Although you may not want to, because you will have to push up on an oily ramp, so you will slide down, and so will the crate. --An AP Physics Student Bored in Study Hall


How much work is needed for a 30 meter by 5 meter ramp with 200 newtons of force needed to push a 1000 newton piano?

5000 joules


What will happen to the effort force if the height of a ramp is increase?

More force will be required to push an object along the ramp.


How would the input force needed to push a wheelchairup a rampchange if you increased the height of the ramp but not it's length?

The input force would increase as the height of the ramp increased. It wouldn't matter the distance. Ask me another one.


Disadvantages of using an inclined plane?

If the ramp is steep you will need more force to push it.


How can you decrease the effort force needed to push a weight to the top of a ramp?

Lengthen the ramp, decrease the mass of the object, use a machine (e.g., a block and tackle) to pull the weight up the ramp, reduce the friction of the weight against the ramp, move the ramp further from the center of gravity of the earth, submerge the ramp in a liquid...tbere may be more ways but this should give you some ideas to consider.


A constant push of 250 N is needed to slide a crate that weighs 400 N along a 2 meter long ramp If the ramp raises the crate 1 meter what is the ramp's efficiency?

80%


Why does the higher the ramp affect the speed of a car?

a ramp offsets the normal force of an object which allows gravity to have an x component relative to the object. the greater the incline the greater this effect is. A car attempting to go up a ramp will be slowed by this effect, and a car attempting to go down a ramp will be sped up by this effect.