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# Forces on an inclined Plane - PowerPoint PPT Presentation

Forces on an inclined Plane. DN/RKS. kg, m, s Equations: Linear: Y=3x + 2 Quadratic: y= 2x 2 + 5x + 2 Exponential: y = 4 x Inverse: y = 2/x 3) (a) +4 m/s ( d) -3 m/s 2. 4) Distance, Displacement: 6m, 3 m east 15 m, 13 m approximately northeast 10 m, 6 m south

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### Forces on an inclined Plane

• 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

• 3 m/s, 1.5 m/s east

• 7.5 m/s, 6.5 m/s approximately east

• 5m/s, 3m/s south

• 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

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

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

• What is an inclined plane?

• A flat surface that makes an angle with the horizontal

• 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

• 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?