Torque and Rotation

A wrench is used to tighten a nut. A 15N perpendicular force is applied 50cm away from the axis of rotation, and moves a distance of 10 cm as it turns. What is the torque applied to the wrench?

• 7.5 Nm
• 1.5 Nm
• 750 Nm
• 150 Nm

The easiest way to open a heavy door  is by applying the force

• Near the hinges
• In the middle of the door
• At the edge of the door far from the hinges
• At the top of the door

What is the Unit for Torque

• Nm
• N
• W
• J

When an object is experiencing a net torque

• it is in dynamic equilibrium.

• it must have an angular acceleration.

• it is rotating.

• it is translating.

If the torque required to loosen a nut on the wheel of a car has a magnitude of 60.0 N• m, what minimum perpendicular force must be exerted by a mechanic at the end of a 45.0 cm wrench to loosen the nut?

• .666 Nm
•  133.3 N
• 66.7 N
• 13.3 Nm

What is the weight of the package if the system is in equilibrium?

• 5 N
• 10 N
• 15 N
• 20 N

What is the weight of the package if the system is in equilibrium?

• 5 N
• 10 N
• 15 N
• 20 N

Which kind of movement is depicted in the picture?

• Rotary
• Linear
• Oscillating
• Reciprocating

For an object in constant velocity circular motion, which arrow represents the acceleration of the ball?

• A
• B
• C
• D

Which of the following depict the speed of the blowing ball for a constant velocity object traveling at a constant velocity in a counter clockwise (CCW) direction?

• A
• B
• C
• D