A block of mass 2.0kg is placed on a smooth plane, inclined to the horizontal at an angle of 15degrees. The force of gravity, acting straight down on the block, is 20N.(adsbygoogle = window.adsbygoogle || []).push({});

a) What is the acceleration of the block down the plane?

I'm having trouble with this because I know:

Net F=fgcostheta-friction

or fgcostheta-friction=ma=2a

BUT THERE IS NO FRICTION GIVEN NOR A COEFFICIENT OF FRICTION

If anyone knows the answer please share

THanks

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# Homework Help: The Vector Nature of Newton's Second Law

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