A) m 1 is faster at the bottom because of the angle is smaller. B) m 2 is faster

Question

       A) m1 is faster at the bottom because of the angle is smaller.
       B) m2 is faster at the bottom because of the angle is larger.
       C) Neither, they both have the same speed at the bottom.
       D) The one with the greater mass is faster at the bottom.
       E) The one with the lighter mass is faster at the bottom.

Consider two frictionless inclined planes with the same vertical height. Plane 1 makes an angle of 35° with the horizontal, and plane 2 makes an angle of 55° with the horizontal. Mass m1 is placed at the top of plane 1, and mass m2 is placed at the top of plane 2. Both masses are released at the same time. At the bottom, which mass is going faster?

Explanation / Answer

B) m2 is faster at the bottom because of the larger angle the frictional force is smaller

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