Newton's second law says that when a constant force acts on a massive body, it causes it to accelerate, i.e., to change its velocity, at a constant rate. In the simplest case, a force applied to an object at rest causes it to accelerate in the direction of the force.
It states that the time rate of change of the momentum of a body is equal in both magnitude and direction to the force imposed on it. The momentum of a body is equal to the product of its mass and its velocity.
1. A body is in straight line motion with an acceleration given by a=32-4v. The initial conditions are at t= 0, v=4. Find the velocity when t = In 2: (A) 15/2 (B) 17/2 (D) 31/4 (C) 23/4