An Object Slides Without Friction Up an Incline and Gains $\circ$

question 36

Multiple Choice

An object slides without friction up an incline and gains a height h = 71.0 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)56.3
• B)53.1
• C)45.0
• D)70.0
• E)58.5