1. two forces are applied to a box on a frictionless surface. one force is 40 n [s]. the second
force is 70 n in30 °w). what is the overall net force? (hint: you can figure out the answer without
any calculations.)
a) 40.6 n (s59.5 °e]
b) 110 n
c) 40.6 n [n59.5 °w]
d) 40.6 n

1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?