Inclined Plane Friction and Work-Energy

A box weighing 46 newtons rests on an incline that makes an angle of 25° with the horizontal. What is the magnitude of the component of the box’s weight perpendicular to the incline?

• 19N
• 21N
• 42N
• 26N

Tags

NGSS.HS-PS2-4

When the sum of all the forces acting on a block on an inclined plane is zero, the block

• must be at rest
• must be accelerating
• may be slowing down
• may be moving at a constant speed

Tags

NGSS.HS-PS2-1

An 8.0-newton block is accelerating down a frictionless ramp inclined at 15° to the horizontal. What is the magnitude of the net force causing the block’s acceleration?

• 0N
• 2.1N
• 7.7N
• 8.0N

Tags

NGSS.HS-PS2-1

A cart rolls down an inclined plane with constant speed as shown in the diagram below. Which arrow represents the direction of frictional force?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

A 10.-newton block is sliding down a 30-degree incline at a constant speed. What is the force of friction?

• 5N
• 4.9N
• 10N
• 98N

Tags

NGSS.HS-PS2-1

A 10.0-kilogram mass held at rest on a frictionless 30.0º incline by force F. What is the magnitude of force F?

• 49.1N
• 98.1N
• 85N
• 9.81N

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

The diagram represents an object being held at rest on a frictionless incline. The net force is equal to

• zero
• normal force
• weight
• friction

Tags

NGSS.HS-PS2-1