An Object Slides Without Friction Down an Incline and Loses $\circ$

question 12

Multiple Choice

An object slides without friction down an incline and loses a height h = 51.0 m.The incline makes an angle of 35.0 ^$\circ$ with respect to the horizontal.If the object's final speed was 45.0 m/s,what was its initial speed in m/s?

• A)45.0
• B)34.7
• C)38.1
• D)28.1
• E)32.0

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