Equilibrium

SELECT the two states of motion that are possible for an object in equilibrium?

• translational

• rotational

• vectorial

• equilial

What kind of force can be acting on an object in equilibrium?

• balanced

• unbalanced

• counter clockwise

• clockwise

If a body is in equilibrium and a 30 N force is acting on it to the East, what other force must also be acting on it?

• 30N west

• 30Lb west

• 30.N east

• 30.N west

SELECT ALL diagrams would rotation be caused by the forces shown?

• r

• f

• s

• z

SELECT ALL diagrams are in rotational equilibrium

• r

• f

• z

• s

In figure shown above, the weight W is 2000. N. What is the tension in the cord running to the ceiling?

• 2130. N

• 2130 N

• 2128 N

• 1879 N

• 1900. N

A car weighing 15,000 N rests on a 15^o hill. Find the components of the force exerted by the car’s weight at right angles to the hill

• 15,000 N

• 14,489 N

• 3882 N

• 3900 N

A car weighing 15 000 N rests on a 15^o hill. Find the components of the force exerted by the car’s weight parallel to the hill

• 3880N

• 3800N

• 3900N

• 15000N

A car weighing 15 000 N rests on a 15^o hill. If the car’s brakes were released, which of these components would move the car downhill?

• Parallel

• Perpendicular

• Downward

• Clockwise

• Counter Clockwise

A traffic light is supported by two cables that are 140^o apart. Each cable exerts a force of 150. N on the light. How much does the light weigh?

• 102 N

• 51.3 N

• 282 N

• 141 N