i have two questions that needs help on. thx in advance 1. You pull a box across the floor with a force of 425 N. The coefficient of kinetic friction is 0.305. The mass of the crate is 125 kg. Angle q = 35.0°. Find: (a) the acceleration of the box and (b) the amount of work done in moving the crate a distance of 3.50 m. 2. A 2.5 kg box slides across the flat surface of a table. The coefficient of kinetic friction for the table/box is 0.295. The box is attached to a light string that passes over a low friction pulley and is connected to a 3.0 kg mass that is hanging vertically. (a) find the acceleration of the system (b) find the velocity of the 2.5 kg box after it has been dragged 0.25 m if its initial velocity was 0.25 m/s, and (c) find the kinetic energy of the box at this point.