Q1. An electric field of 254,000 N/C points due west at the certain spot. What are the magnitude and direction of the force that acts on the charge of -8.1 µC at this spot?
Q2. A grocery cart with mass of 15 kg is pushed at the constant speed along an aisle by a force F = 14 N. the applied force acts at the 20 degree angle to the horizontal. Find the work through each of the forces on the cart if the aisle is 16 m long.