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Explain why a centripetal force does not do work on a circularly moving object?
Because the object never moves in the direction of the force. So the product of (force) times (distance) is zero, and F x D is the definition of work.
In order for work to be done explain the two things that must occur?
A force must act on a body which, as a result undergoes motion in the direction of the force.
What type of person studies motion force and energy to explain the way things work?
Physicist
Explain why the work done of sliding friction is negative when an object undergoes a dispalcement on a rough surface?
Work is done when a force is applied over a distance. If the force acts opposite the direction of motion, like friction, then the work is negative.
Explain why only the vertical height of the stairs is measured for work?
Horizontal motion doesn't require any force.Horizontal work = (force) x (distance) = 0.
Who studies motion force energy to explain the way things work?
scientists
Explain how machines make work easier if they do not decrease the amount of work you need to do?
A machine makes work easier by changing the amount of force you exert, the distance over which you exert your force, or the direction in which you exert your force.
Explain why a centripetal force does not do work on a circularly moving object?
Because the object never moves in the direction of the force. So the product of (force) times (distance) is zero, and F x D is the definition of work.
What do call someone thats studies motion force energy to explain the way things works?
physicist's study motion forces and energy to explain the way things work
In order for work to be done explain the two things that must occur?
A force must act on a body which, as a result undergoes motion in the direction of the force.
What type of person studies motion force and energy to explain the way things work?
Physicist
Explain why the work done of sliding friction is negative when an object undergoes a dispalcement on a rough surface?
Work is done when a force is applied over a distance. If the force acts opposite the direction of motion, like friction, then the work is negative.
How transfor the formula of power is force is required explain?
how transform the formula of power is force is required explain
Explain why only the vertical height of the stairs is measured for work?
Horizontal motion doesn't require any force.Horizontal work = (force) x (distance) = 0.
What principle explains how hydraulics work?
The non-compressibility of liquids, and the equivalence of p = F/A (pressure equals force divided by area) explain why and how hydraulics work.
Explain - how you can exert a large force on an object without doing any work?
You make somebody else do it. haha :p
Is it possible that a force is acting on a body but still the work done is zero . explain giving one example?
yes........ eg: we are standing on earth, gravity (force) is acting everytime, but as no acceleration takes place work done is 0.
