We need to find the height of the object. The formula for the gravitational potential energy is given by : So, the required height is equal to 46.87 m .
How do you find height when given mass and potential energy?
The formula for potential energy depends on the force acting on the two objects. For the gravitational force the formula is P.E. = mgh , where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s 2 at the surface of the earth) and h is the height in meters.
At what height is an object that has mass of 56 kg?
9800=56×9.8×h h= 1.78571429metres is the answer.
How high above the ground is a 20 kg box if it has 500 joules of potential energy?
How high above the ground is a 20 kg box if it has 500 joules of gravitational potential energy? 25 m 17.
How do you find the height with Joules and mass?
For the gravitational force the formula is P.E. = mgh , where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s 2 at the surface of the earth) and h is the height in meters. Notice that gravitational potential energy has the same units as kinetic energy, kg m 2 / s 2 .
What is the formula for height?
So, “ H/S = h/s .” For example, if s=1 meter, h=0.5 meter and S=20 meters, then H=10 meters, the height of the object.
How do you figure out mass?
Mass is always constant for a body. One way to calculate mass: Mass = volume × density . Weight is the measure of the gravitational force acting on a mass. The SI unit of mass is “kilogram”.
What is the potential energy of your 3 kg puppy?
1 Answer. Equal to its weight. That is 3kg x 9.8 ms^-2 = (approx.) 30 N .
What is work formula?
To express this concept mathematically, the work W is equal to the force f times the distance d, or W = fd . If the force is being exerted at an angle θ to the displacement, the work done is W = fd cos θ.
How do you calculate work?
The formula for work is , work equals force times distance . In this case, there is only one force acting upon the object: the force due to gravity. Plug in our given information for the distance to solve for the work done by gravity.
How do you find mass with height?
Work is the force exerted on an object times the distance over which the force is exerted: W = Fx, where W is the work in Nm = Joule. Work done to lift an object of mass m a height h: W = Fgh = mgh . Work done against friction: W = Ff x.
How do you find mass with joules?
In modern physics, the mass of an object is also a measure of the energy contained in the object. Albert Einstein proposed that mass and energy are related by the equation “E = m_c
How do you calculate change in height?
The equation ΔPE g = mgh applies for any path that has a change in height of h, not just when the mass is lifted straight up.
What is unit of height?
Height is a common body measurement typically measured in feet (ft) + inches (in) in the United States and centimeters (cm) elsewhere. These are length measurements, so the SI unit would be meters .
How do you estimate the height of a tree?
Sight over your hand to the base of the tree, and sight over the stick to the top of the tree. Measure how far you have moved from the tree. The measurement, in feet, is the tree's height.
How do u find the height of a cylinder?
The values of the radius and volume are placed in the formula to get the volume of the cylinder. Therefore, the height of a cylinder is calculated with the help of the formula, V/ πr 2 .
