Question

SCQ
24 The potential energy function
associated with the force
F = 4xy i + 2x?j is :
Choose an option:
U=- 2x²y
U = – 2x2y + constant
U = 2x2y + constant
not defined​

Answer 1

Answer:

Explanation:(a) U=−2x2y

(b) U=−2x2y+constant

(c) U=2x2y+constant

(d) Not defined

Answer :

B

Solution :

dU=−F→.ds=−F→.(dxiˆ+dyjˆ)

Also by reverse method using Fx=∂U∂X and Fy=−∂U∂Y

only option(b) satisfies the criteria.