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Forces on an inclined PlanePowerPoint Presentation

Forces on an inclined Plane

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3 m/s, 1.5 m/s east 7.5 m/s, 6.5 m/s approximately east 5m/s, 3m/s south

- kg, m, s
- Equations:
- Linear: Y=3x + 2
- Quadratic: y= 2x2 + 5x + 2
- Exponential: y = 4x
- Inverse: y = 2/x
3) (a) +4 m/s (d) -3 m/s2

4) Distance, Displacement:

- 6m, 3 m east
- 15 m, 13 m approximately northeast
- 10 m, 6 m south
5) Speed, Velocity

- Units of velocity? m/s
- Units of acceleration? m/s2
- Units of force? N or mkg/s2
- Units of distance? m
- Formula for average acceleration? Change in velocity/time
- Formula for average velocity? Change in displacement/time
- Formula for average speed? Change in distance/time
- What is the constant acceleration of gravity on earth? -10m/s2
- One type of field force? gravity
- Three trig function ratios? Sin = O/H Cos = A/H Tan = O/A

Quick Refresh

- What is the acceleration of a 5.0kg box on a frictionless surface with an applied force of 8 N?

Quick Refresh

- What is the normal force if a 5.0kg box is resting on a table?

Notes:

- What is an inclined plane?
- A flat surface that makes an angle with the horizontal

Notes

- How will I find the normal force on an inclined plane?
- Draw free body diagarm
- Normal force is PERPENDICULAR to surface!
- Find force perpendicular to surface (usually just gravity)
- Fnormal=-Fperpendicular

Notes

- How will I find the acceleration of an object on an inclined plane?
- Draw free body diagarm
- Acceleration will be parallel to surface!
- Find forces parallel to surface
- F parallel = maparallel

What is the acceleration and the normal force of a 4.0 kg box on a frictionless surface at a 30⁰ angle?

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