Engineering Board Exam Reviewer · Engineering Mechanics · hard
A 18 kg block slides down a 45° incline with a coefficient of kinetic friction of 0.3. What is the block's acceleration down the incline? (g = 9.81 m/s2)
- 4.86
- 6.94
- 9.02
- 2.94
Answer
A. 4.86
Solution
a = g( - ) = 9.81( 45° - 0.3 45°) = 4.86 m/s2.
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