11.21 The acceleration of a particle is defined by the relation a = k(1 – e"), where k is a constant. Knowing that the velocity of the particle is v = +9 m/s when x = -3 m and that the particle comes...

Extracted text: 11.21 The acceleration of a particle is defined by the relation a = k(1 – e"), where k is a constant. Knowing that the velocity of the particle is v = +9 m/s when x = -3 m and that the particle comes to rest at the origin, determine (a) the value of k, (b) the velocity of the particle when x = -2 m.