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If a rock weighing 2200 N is dropped from a height of 15 m what is its KE just before it hits the ground Remember weight is measured in newtons (N) and is equal to mass times gravity?
Wiki User
∙ 7y ago
33,000 J
Bria Cummings
The potential energy (PE) of the rock at the top is given by PE = mgh where m is the mass of the rock, g is the acceleration due to gravity, h is the height. Converting 2200 N to kg would give us mass. Using the formula KE = PE, you can find the kinetic energy just before it hits the ground.
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What is the Weight of a body is measured in?
weighing balance
How are mass and weight measured?
Mass is typically measured using a balance or scale, usually in units of grams or kilograms. Weight is the force of gravity acting on an object's mass and is measured using a spring scale or a scale that incorporates load cells, often in units of Newtons or pounds.
If a rock weighing 2200 N is dropped from a height of 15 m what is its KE just before it hits the ground Remember weight is measured in newtons (N) and is equal to mass times gravity.?
The potential energy of the rock at the top is given by PE = mgh = 2200 N * 15 m = 33,000 J, which is converted to kinetic energy just before hitting the ground. So the kinetic energy just before hitting the ground is also 33,000 J.
How do you find the mass of an animal?
Basically by weighing it. Although mass is not the same as weight, if you know the weight and the gravity, you can calculate the mass.Basically by weighing it. Although mass is not the same as weight, if you know the weight and the gravity, you can calculate the mass.Basically by weighing it. Although mass is not the same as weight, if you know the weight and the gravity, you can calculate the mass.Basically by weighing it. Although mass is not the same as weight, if you know the weight and the gravity, you can calculate the mass.
What force causes something to fall straight to the when it is dropped?
Gravity.
What is the Weight of a body is measured in?
weighing balance
What does mass mean in weighing?
The weight is the mass multiplied by the acceleration of gravity. When weighing an object by a balance the acceleration of gravity is on both sides of weighing and hence canceling its effect and hence you get the object mass (not the weight)..
How are mass and weight measured?
Mass is typically measured using a balance or scale, usually in units of grams or kilograms. Weight is the force of gravity acting on an object's mass and is measured using a spring scale or a scale that incorporates load cells, often in units of Newtons or pounds.
How mass and weight measure?
Weight is the pull of gravity on a mass, it is measured in a gravity field using a weighing machine (bathroom scales are an example) Mass is an intrinsic property of matter, it is a measure of an object's resistance to acceleration (a change in its state of motion) when a force is applied.
If a rock weighing 2200 N is dropped from a height of 15 m what is its KE just before it hits the ground Remember weight is measured in newtons (N) and is equal to mass times gravity.?
The potential energy of the rock at the top is given by PE = mgh = 2200 N * 15 m = 33,000 J, which is converted to kinetic energy just before hitting the ground. So the kinetic energy just before hitting the ground is also 33,000 J.
When you measure the force of gravity on you it is called?
"Weighing yourself."
Is gravity measured in grams?
gravity is weight and weight is measured in N (newtons). so, no, its not measured in grams. :) Actually, gravity is measured as acceleration and is 9.8 Meters/second/second or 32.2 feet/second/second. Weight is the effect felt BECAUSE of gravity.
Is gravity measured in cubic centimeters?
No. First, gravity is a phenomenon not something you can measure. What you can measure is the force due to gravity which is measured in "Newtons" , or the acceleration due to gravity, which is measured in meters per second per second. I can't think of anything about gravity that would be measured in cubic centimeters, or cubic anything.
How do you find the mass of an animal?
Basically by weighing it. Although mass is not the same as weight, if you know the weight and the gravity, you can calculate the mass.Basically by weighing it. Although mass is not the same as weight, if you know the weight and the gravity, you can calculate the mass.Basically by weighing it. Although mass is not the same as weight, if you know the weight and the gravity, you can calculate the mass.Basically by weighing it. Although mass is not the same as weight, if you know the weight and the gravity, you can calculate the mass.
What force pulls down something on a weighing scale?
Gravity
What does Weigh in mean?
The weight is the mass multiplied by the acceleration of gravity. When weighing an object by a balance the acceleration of gravity is on both sides of weighing and hence canceling its effect and hence you get the object mass (not the weight)..
What is one invention that would not work if you had no gravity on earth?
weighing machine
