DE -- Torque

The first condition necessary to achieve equilibrium is ---

• the center of mass of the system must be equal to the value of a_c

• the net external force on the system must be zero

• the center of mass must be zero

Tags

NGSS.HS-PS2-2

The diagram shows which type of equilibrium?

• static

• dynamic

Tags

NGSS.HS-PS2-1

The second condition necessary to achieve equilibrium involves --

• increasing external forces

• increasing the mass of the system for stability

• avoiding an increase in static friction

• avoiding accelerated rotation

A rotating body or system can be in equilibrium if its _____ is constant and remains unchanged by the forces acting on it.

• rate of rotation

• centripetal acceleration

• external friction

Torque has both ____ and ____.

• magnitude and direction

• velocity and acceleration

• north and south poles

In this picture, why is the torque equal to zero?

• the force is only pulling on the hinge of the door

• the force is perpendicular to the door

• the quantity of force is less than the value of r

Torque is the rotational equivalent of ____.

• rotational velocity

• static friction

• an acceleration

• a force

The equation symbol for torque is --

• the Greek letter omega

• the Greek letter theta

• the Greek letter tau

This picture includes an alternate symbol for torque. Which of the following symbols represents torque?

• 
• 
• 
• 

The SI unit of torque is ---

• N m

• m/s

• N

• J