Further Maths > 2021 > 16
WASSCE
A box of mass 15kg is placed on a rough plane inclined at 60o to the horizontal. if he box is at rest, calculate the normal reaction to the plane. {take g = 10ms-2}
A.
129.9N
B.
75.0N
C.
60.0N
D.
7.5N
Answer: B
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