Q: A particle of potential energy shown in graph is moving towards right. The initial kinetic energy of particle is 21 J at x = 0
Mark the correct option (s)
(a) The particle accelerates for 0 ≤ x < 1 m
(b) At x = 1 m, the particle has minimum KE energy
(c) The kinetic energy is 41 J at x = 3 m
(d) The particle is trapped within 0 < x ≤ 4
Click to See Answer :
Ans: (b) , (c)
Sol: As we know that Total Mechanical Energy = Potential Energy + Kinetic Energy ; Which is constant
Hence Where Potential Energy is maximum , Kinetic Energy is minimum and Vice Versa
At x = 1 , Potential Energy is maximum , Hence Kinetic Energy is minimum at x = 1