2. Can a 20 N force and 40 N force ever produce a resultant with magnitude of 27 N? 3. A 60.0 km/h wind is blowing due north. What is the magnitude and direction of the velocity of an
airplane traveling at an air speed of 150 km/h when it is heading (a) north; (b) south; (C) east? Solve
mathematically.
4. An automobile travels 40 km due east and then 60 km due north. (a) What is the magnitude of the
resultan displacement of the automobile? (b) What is its direction including angle?
Solve mathematically.
5. Determine whether each of the following combinations of forces can be in equilibrium if their directions
are properly selected:
(a) 5 N, 7, 13 N (b) 5 N, 7 N, 9N
(C) 5 N, 7 N, IN