Physics > 2001 > 2
WASSCE
A spring balance, which is suspended from the roof of a lift, carries a mass of 1kg at its free end. if the lift accelerates upwards at 2.5ms-2, determines the reading on the spring balance. [g = 10ms-2]
A.
25.0N
B.
12.5N
C.
7.5N
D.
4.0N
Answer: B
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