Work, Power and EnergyHard
Question
The potential energy for the force 
= yzî + xaĵ + xy
, if the zero of the potential energy is to be chosen at the point (2, 2, 2), is
= yzî + xaĵ + xy, if the zero of the potential energy is to be chosen at the point (2, 2, 2), isOptions
A.8 + xyz
B.8 - xyz
C.4 - xyz
D.4 + xyz
Solution
∵ 
= - 
∴ 
= - xy
Therefore U = - xyz + C where C = constant As at (2, 2, 2), U = 0 so C = 8
OR
Objective question approach : Check that U = 0 at (2, 2, 2)
= - ∴ = - xyTherefore U = - xyz + C where C = constant As at (2, 2, 2), U = 0 so C = 8
OR
Objective question approach : Check that U = 0 at (2, 2, 2)
Create a free account to view solution
View Solution FreeMore Work, Power and Energy Questions
The changes in momentum of a particle, when the kinetic energy is increased by 0.1% will be:-...Consider a car moving on a straight road with a speed of 100 m/s. The distance at which car can be stopped is [μ2 =...A 30 g bullet initially travelling at 120 m/s penetrates 12 cm into a wooden block. The average resistance by the wooden...Consider two process A and B on a system as shown in the figure let ᐃW1 and ᐃW2 be the work done by the syst...Potential at a point x is 5 V and at a point y is -5V. A proton is moving towards x from y, then...