An object of mass 2.21 kg is subject to a force that is always directed towards the North but whose magnitude changes quadratically with time. The magnitude of the force is given as F = (5 N/s)t. Let the y-axis point towards the North. 50% Part (a) Determine the change in the velocity, in meters per second, of the object between an initial time to = 0 s and an elapsed time t = 1.9 s. - Av= 50% Part (b) Determine the change in y-coordinate, in meters, of the object between initial time to = 0 s and an elapsed time t = 1.9 s. if the initial velocity is 11 m/s and directed North, in the same direction as the force. Ay= m (7%) Problem 14: A particle of mass 1.88 kg begins at rest and is then subject to a force in the positive x direction that changes with time as given by the following function: F=mg[1-e2.t], where g is the acceleration due to gravity. 50% Part (a) Determine the change in the velocity Av of the particle between t = 0 and t = 2.9 seconds. Av= m/s Grade Summary Deductions 5% Potential 95%