Physics Practice Test – Equilibrium of Forces (Questions with Answers and Explanations)

A force of 30 N acts at an angle of 60^o on a body of mass 6 kg initially at rest on a smooth horizontal plane. Find the distance covered in 10 seconds. (WASSCE FM 2007)

A. 125 m
B. 125 m
C. 62.5 m
D. 25 m

A uniform metre rod of weight 40 N has a piece of metal of weight 20 N attached to one of its ends. The centre of gravity of the system from the weighted end is _______

A. 8.4 cm
B. 16.7 cm
C. 25.0 cm
D. 33.3 cm

A particle P of weight W is in equilibrium under the system of forces shown in the diagram. The values of W and  are ______

Two forces of magnitudes 3 N and 7 N have a resultant of magnitude 5 N. Calculate, correct to one decimal place, the angle between the two forces, to one decimal place. (WASSCE FM 2006)

A. 38.2^o
B. 141.79^o
C. 38^o
D. 141.8^o

The body X shown in the diagram has a mass of 6 kg and is held in equilibrium by a string and a horizontal force F. The tension T in the string is ____ [Take g as 10 ms^-2]