A rectangular playground is to be fenced off and divided in two by another fence parallel to one side of the playground. Four hu
ndredFour hundred and eightyand eighty feet of fencing is used. Find the dimensions of the playground that maximize the total enclosed area. What is the maximum area?
The work done is negative as the force is applied in the forward direction and the displacement of the hand is in the backward direction.
The work done is positive as the work is done on the baseball by Carlton. Moreover, both the force applied and the displacement of Carlton are in a straight line in the forward direction.
The work done in this case is zero as Carlton rides with constant speed, the Kinetic energy too remains constant and hence net work done is zero.
The work done in this case is positive as the work is done on the baseball by Carlton and as the velocity changes its Kinetic energy also varies wit it.
Also the force applied and the displacement of Carlton in this case are in the directed to the same path.
If 50 identical light bulbs are connected in series across a single power source, then the voltage across each bulb is ( 1/50 ) of the voltage delivered by the power source.
