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A 3.6kg object slides down a a 2 meters long slide inclined at 60 degrees to the horizontal A friction force of 3Newtons acts along the way and gravity is 9.8 calculate potential energy lost?
Wiki User
∙ 16y ago
The easy answer to this question is to recognize that some of the potential energy will be lost to work against friction and this loss is simply the force of friction multiplied by the length of the ramp which is 6N. The previous answers I submitted are incorrect.
Wiki User
∙ 16y ago
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Why when you push an object across a desk is the work done not equal to the change in gravitational potential energy?
The gravitational potential energy does not change if the desk is horizontal. The work done is in overcoming the friction between the object and the desk.
How do you calculate the acceleration of a 2 kg block on a horizontal friction-free air table when you exert a horizontal net force of 20 N?
2,000 grams.
In the absence of air friction does the horizontal component of a projectile?
It typically
Why does grass have high friction?
Grass is rough, it stood tall from ground against the motion moving in horizontal plane. What that act against the motion is friction.
Does friction causes mechanical energy to be transformed into potential energy?
Thermal
Why when you push an object across a desk is the work done not equal to the change in gravitational potential energy?
The gravitational potential energy does not change if the desk is horizontal. The work done is in overcoming the friction between the object and the desk.
Calculate resultant velocity?
First you have to resolve all forces into vertical and horizontal. If it on a slope take the reaction force as vertical and the slope as horizontal. Then equate the opposite forces, for example the friction and the driving force, and use maths to figure out the resultant.
How do you calculate the acceleration of a 2 kg block on a horizontal friction-free air table when you exert a horizontal net force of 20 N?
2,000 grams.
Is the coefficient of friction on a horizontal plane between to substances the same as the coefficient of friction on the incline plane?
POMBO
In the absence of air friction does the horizontal component of a projectile?
It typically
A horizontal force of 40 newtons will just start a 600 newton empty sled moving across packed snow what is the coefficients of static and kinetic friction?
static friction= normal contact force*coefficient of static friction 40 = (600*9.8) * CSF CSF=40/(600*9.8) (you can calculate that yourself, i cant be bothered) there isn't enough info to work out the coefficient of kinetic friction
Why does grass have high friction?
Grass is rough, it stood tall from ground against the motion moving in horizontal plane. What that act against the motion is friction.
How can an object accelerate if kinetic friction is equal and opposite to horizontal force which would mean it has a net force of zero?
It wouldn't accelerate. It would move at a constant velocity due to its tendency to keep moving (inertia) and friction being canceled out by the horizontal force.
What is the amount of horizontal force required to start in motion an object sitting on a horizontal surface must be great than what?
multiply coefficient of static friction by object mass
How would you find the total energy of a body executing simple harmonic motion?
Usually you would want to find only the total MECHANICAL energy. This is the sum of kinetic and potential energy. Due to conservation of mechanical energy (this assumes there is no friction), you can calculate the kinetic and the potential energy separately at any point of the movement, and then add them up. For example, at the extremes, when the body's instantaneous velocity is zero, you would only need to calculate the potential energy.
Does friction causes mechanical energy to be transformed into potential energy?
Thermal
What do wheels and gears of a machine are greased in order to decrease I know the choices are potential energy efficiency output and friction?
Friction is decreased.
