A 2 kilogram mass is lifted 4 meters above the ground what is the change it gravitational energy
1 answer:
Answer:
78.4 J
Explanation:
The gravitational potential energy of an object is the energy possessed by the object due to its location in the gravitational field.
The change in gravitational potential energy of an object is given by:
where:
m is the mass of the object
is the acceleration due to gravity
is the change in height of the object
For the mass in this problem, we have:
m = 2 kg is the mass
is the change in height
So, its change in gravitational energy is:
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Answer
given,
Mass of the solid sphere = 1800 Kg
radius of the sphere,R = 5 m
mass of the small sphere, m = 2.30 Kg
when the Point is outside the sphere the Force between them is equal to
when r>R
When Point is inside the Sphere
when r<R
where r is the distance where the point mass is placed form the center
Now Force calculation
a) r = 5.05 m
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F = 1.082 x 10⁻⁸ N
b) r = 2.65 m
Answer:
Explanation:
Each piece is analyzed by using the Principle of Momentum Conservation and the Impulse Theorem:
Heavier object:
Lighter object:
After the some algebraic handling, the following relationship is found:
Given that both pieces have horizontal velocities only and both are modelled as projectiles, the horizontal component of velocity remains constant and directly proportional to travelled distance. Then: