Problem 2-1| Force Vectors| Engineering Mechanics: Statics| RC Hibbeler

Determine the magnitude of the resultant force FR=F1+F2 and its direction, measured counterclockwise from the positive x axis. 

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Problem 1-21| General Principles| Engineering Mechanics: Statics| RC Hibbeler

If a man weighs 155 lb on earth, specify (a) his mass in slugs, (b) his mass in kilograms, and (c) his weight in newtons. If the man is on the moon, where the acceleration due to gravity is gm=5.30 ft/s², determine (d) his weight in pounds, and (e) his mass in kilograms.

Problem 1-18| General Principles| Engineering Mechanics: Statics| RC Hibbeler

Using the SI system of units, show that Eq. 1–2 is a dimensionally homogeneous equation which gives F in newtons. Determine to three significant figures the gravitational force acting between two spheres that are touching each other. The mass of each sphere is 200 kg and the radius is 300 mm.