I'm doing my homework for a Physics class and trying to get ready for a quiz. I encountered this question:
Two ramps of equal length are situated such that ramp #1 has a slope (with respect to the horizontal) of 30°, and ramp #2 has a slope of 60°. Neglecting friction, roughly by what factor is the time it takes a ball to roll down ramp #1 larger than the time it takes a ball to roll down ramp #2?
I did this: $ \frac{\sin60}{\sin30} $
That came out to be 1.74, but the correct answer is 1.3. How?