1. Two forces act on a box as follows: F1 = 100 N at 01 = 170° and F2 = 75 N at 02 = 30°. Find their resultant force on the box.

(a) the magnitude of vector sum Fi + F2

(b) the direction of of the vector sum Fi + F2

Which articulations allow for greatest range of motion?

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good