A block is acted upon by TWO horizontal forces as illustrated in the diagram above. The block accelerates at 1.5(ms^{-2}). Calculate the mass of the block.
-
A.
6kg -
B.
9kg -
C.
10kg -
D.
15kg
Correct Answer: Option A
Explanation
Total force exerted on the block = (10 – 1)N =9N
Force = mass x acceleration
9 = m x 1.5
m = 9/1.5 = 6kg