Incline Forces: Review

Forces and Motion

Review Lesson

Multiple Select

Neglecting friction, what forces act on the cyclist?

• Weight/gravity

• Normal

• Applied

• Drag

Update your drawing!

Multiple Choice

What can we find knowing that the displacement was 45 meters and the event took 7.8 seconds?

• the final velocity is 5.77 m/s

• the acceleration is 5.77 m/s/s

• the average velocity is 5.77 m/s

• the initial velocity is 5.77 m/s

Multiple Choice

How can we find the acceleration from this information?

• it's the same, 11.5

• take the final velocity and divide it by 2

• take the final velocity and divide it by the time

Forces are BALANCED in y-direction. Find the applied force!

List the forces present (neglect drag).

Multiple Select

What forces are acting on the sliding box?

• Weight/gravity

• Tension

• Normal

• Friction

• Thrust

Resolve the tension force of 240 N into x and y components.

So what's the net force?

Multiple Choice

Knowing the net force, the time applied, and the mass of the object, what can we find?

• Acceleration: F = ma

• Velocity: F = vt

• Displacement: D = vt

• none of these

Use the acceleration and the time to determine the final velocity.

Open Ended

How can we use the final velocity of 16.2 m/s to determine how far the object traveled in 3.5 seconds?