A 55.0 N backpack full of unread books (it's probably yours) is at rest on a level tabletop. The coefficient of static friction between the bag and tabletop is 0.10 and the kinetic coefficient of friction is 0.05. The useless bag is pulled horizontally by a spring with a force constant (aka spring constant) of 300 N/m as shown. The spring stretches 2.90 cm and remains stretched by that amount. The bag may or may not be moving at this point. (a) Determine the friction force acting on the bag 2 seconds after the spring has been stretched. X N. (b) If the weight of the bag was increased, will the friction force acting on the bag increase, decrease, remain the same? increase decrease O remain the same (c) Determine the maximum allowable coefficient of static friction between the bag and the table such that the bag will be moving with the given amount of spring stretch? Submit Answer Figure