4) A donkey pulls a crate up a rough, inclined plane at constantspeed. Which one
ID: 1729598 • Letter: 4
Question
4)
A donkey pulls a crate up a rough, inclined plane at constantspeed. Which one of the following statements concerning thissituation is incorrect?
A )
The work done on the crate by the normal force of the plane iszero joules.
B )
The gravitational potential energy of the crate isincreasing.
C )
The work done on the object by gravity is zero joules.
D )
The net work done by all the forces acting on the crate is zerojoules.
E )
The donkey does "positive" work in pulling the crate up theincline.
4)
A donkey pulls a crate up a rough, inclined plane at constantspeed. Which one of the following statements concerning thissituation is incorrect?
Explanation / Answer
Given :
A donkey pulls a crate up a rough, inclined plane atconstant speed. The following statements concerning this situationis incorrect
A )
The work done on the crate by the normal force of the plane iszero joules.
C )
The work done on the object by gravity is zero joules
D )
The net work done by all the forces acting on the crate is zerojoules.
A )
The work done on the crate by the normal force of the plane iszero joules.
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