Question

The potential energy U in joule of a particle of mass 1kg moving in x-y plane obeys the law U= 3x+4y where (x,y) are the coordinates of the particle in metre. If the particle is at rest at (6,4) at time t=0, then find the speed of the particle when it crosses the y-axis.​

Answer 1

Step-by-step explanation:

I think so this is the correct answer of this question

Answer 2

Answer:

above answer is wrong and correct answer is 10 ms