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Q: A ball of mass 0.3 kg is released from rest at a height of 8 m. How fast is it going when it hits the ground Acceleration due to gravity is g 9.8 ms2. A. 13.1 ms B. 12.5 ms C. 2.4 ms?
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What is the effect of increasing the height of the track on the acceleration of the object?

The effect of increasing the height of the track on the acceleration of the object is that more work is required to accelerate. It increases the gravity.


What is the relation between the potential energy and acceleration due to the gravity?

The two are unrelated. Potential energy depends on height; acceleration due to gravity is more or less constant.


How do you find the gravitational potential energy if you have the weight in newtons and the acceleration and the height?

The gravitational potential energy is the product of (mass) x (acceleration due to gravity) x height). The first two terms ... (mass) x (acceleration due to gravity) ... are the object's weight. So if you already know its weight, then the gravitational potential energy is just (weight) x (height) and you don't need to use gravity at all.


What is the acceleration due to gravity if an object falls down from a height of 25 m?

The acceleration due to gravity remains constant throughout the fall i.e. 9.8m/s2 ( taken as 10 for calculations).


How can you mathematically prove that two objects hit the ground at the same time?

The acceleration of gravity near the earth's surface is 9.8 meters/sec2 or 32.2 ft/sec2. That's it. That's the acceleration of any falling body, whether dropped from your hand or from the roof of a tall building. Knowing the acceleration and the height from which the object fell, it's easy to calculate how much time it takes the object to hit the ground. The time is t = sqr-root of (2H/g). H = the height, g = acceleration of gravity. No properties of the object appear in this formula. None of this discussion has anything to do with the mass, weight, shape, or composition of the object. They don't make any difference. If gravity is the only force on the object, then all objects fall at the same rate, and hit the ground at the same time if dropped from the same height.

Related questions

What is m g h?

mgh represents the potential energy of an object located at a height h above the ground, where m is the mass of the object, g is the acceleration due to gravity, and h is the height. It is calculated as the product of the mass, acceleration due to gravity, and the height.


What is A ball is dropped from 5 m height What is its acceleration when it is at a height of 2.5 m?

Its acceleration is always the same - the acceleration of gravity at 32 ft/sec/sec - no matter what distance it is during drop, until it hits the ground.


How do I work out a vertical height when it gives me kg and kJ of Ep and Gravity?

Ep (joules) = mass * acceleration due to gravity * height So: height = Ep / (mass * acceleration due to gravity)


Can acceleration due to gravity vary with respect to height?

No, acceleration due to gravity is a constant at 9.81ms-2. It cannot be influenced by other factors such as height.


What is the formula fo potential energy?

Potential Energy=mass*acceleration due to gravity*height. PE=mgh The acceleration due to gravity= 9.8m/s


What is the effect of increasing the height of the track on the acceleration of the object?

The effect of increasing the height of the track on the acceleration of the object is that more work is required to accelerate. It increases the gravity.


WHEN A BALL IS DRoPPED FROM A height its speed increases why?

Acceleration due to the force of gravity.


What is the relation between the potential energy and acceleration due to the gravity?

The two are unrelated. Potential energy depends on height; acceleration due to gravity is more or less constant.


If the height is 246000000 then how is the potential energy?

246... of what? To calculate the potential energy, multiply mass x gravity x height. In SI units, use kg for mass, 9.8 for gravity, meters for height. Answer will be in Joule.If the height is in meters, the acceleration of gravity is much, much less. So you'll have to calculate the acceleration yourself by g = G × Mearth/246,000,0002.


What are the quantities involved with gravitational potential energy?

Mass, height, and acceleration due to gravity.


How do you find the gravitational potential energy if you have the weight in newtons and the acceleration and the height?

The gravitational potential energy is the product of (mass) x (acceleration due to gravity) x height). The first two terms ... (mass) x (acceleration due to gravity) ... are the object's weight. So if you already know its weight, then the gravitational potential energy is just (weight) x (height) and you don't need to use gravity at all.


What is the acceleration due to gravity if an object falls down from a height of 25 m?

The acceleration due to gravity remains constant throughout the fall i.e. 9.8m/s2 ( taken as 10 for calculations).