(A)Select the everyday forces that are not conservative. Check all that apply. e
ID: 2063581 • Letter: #
Question
(A)Select the everyday forces that are not conservative.Check all that apply.
electrostatic force
the forces produced by your muscles
gravity force
friction
air resistance
(B)Suppose you lift a suitcase from the floor to a table.
The work you do on the suitcase depends on which of the following:
Check all that apply.
the weight of the suitcase
whether you lift it straight up or along a more complicated path
the air pressure in the room
the time the lifting takes
the height of the table
(C) Can the total mechanical energy ever be negative?
Why?
Explanation / Answer
a) the forces produced by your muscles friction air resistance b)the weight of the suitcase the height of the table c) yes potential energy depends on reference point. suppose if i choose 10 m height is reference point then if i am at ground , h = 0 and at rest then my PE or mechanical energy is negative.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.