3 years ago

) what is kinetic energy, and how does it differ from potential energy?

1 answer:

7 0

Kinetic energyis the energy of body or a system with respect to the motion of the body or of the particles in the system. Potential energy is the stored energy in an object of system because of its position or configuration.

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Explanation:

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MArishka [77]

Answer:

Explanation:

given ;

coefficient of kinetic friction = 0.80

mass m = 26kg

considering the force acting in horizontal direction and from newton's 2nd law of motion;

for vertical motion = Fn - mg = 0

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3 years ago

The weight of a block on the inclined plane is 500 N and the angle of incline is 30 degrees. What is the magnitude of the force

yanalaym [24]

Answer:

250 N

433 N

Explanation:

N = Normal force by the surface of the inclined plane

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f = static frictional force acting on the block

Parallel to incline, force equation is given as

f = W Sin30

f = (500) Sin30

f = 250 N

Perpendicular to incline force equation is given

N = W Cos30

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N = 433 N

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3 years ago