Q1. A ship sets out to sail to a point 128 km due north. An unexpected storm blows the ship to a point 148 km due east of its starting point. (a) How far (in km) and (b) in what direction (as an angle from due east, where north of east is a positive angle) have to it now sail to reach its original destination?
Q2. A block of mass 2 kg is attached to a horizontal spring of force constant 130 N/m and to a spring of negligible mass. The string runs over a mass less, frictionless pulley to a hanging block off mass 2 kg. At first entire system is at rest and the spring is unscratched.
If the 2 kg mass slides on a horizontal frictionless surface, what is the speed of the mass 4 kg while it has fallen a distance 0.4 m downward from its rest position?