A 5-Kg Object Slides Down a Frictionless Surface Inclined at an Angle

question 31

Multiple Choice

A 5-kg object slides down a frictionless surface inclined at an angle of 30º from the horizontal.The total distance moved by the object along the plane is 10 meters.The work done on the object by the normal force of the surface is

• A)zero
• B)0.50 kJ
• C)0.43 kJ
• D)0.58 kJ
• E)0.25 kJ

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