Q1. A street lamp weighs 158 N. It is supported equally by two wires that form an angle of 104 degrees with each other. What is the tension of each of these wires?
Q2. Mike pulls a sled across level snow with force of 235 N along a rope that is 35.5° above the horizontal. If the sled moved the distance of 75.0 m, how much work did Mike do?
Q3. A proton is travelling horizontally to the right at 5.00×10^6.
Find out (a) magnitude and (b) direction of the weakest electric field that can bring the proton uniformly to rest over a distance of 3.40.