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Santa’s sleigh slides down a snowy roof that makes an angle of 30 degrees with the horizontal. How fast is Santa accelerating?

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Correct Answer: B. 4.9 m/s2
The acceleration imparted by the force of gravity to an object on africtionless inclined plane is a = g sin (theta). Therefore, if theta = 30, we find: a = g*sin(theta) = 9.8*sin(30) = 4.9 m/s2.
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