A body of mass 2kg is suspended from the ceiling of a lift with a...
PHYSICS
WAEC 1996
A body of mass 2kg is suspended from the ceiling of a lift with a light inextensible string. lf the lift moves upwards with acceleration of 2ms-2, calculate the magnitude of the tension in the string (g = 1Oms-2)
- A. 24N
- B. 20N
- C. 16N
- D. 4N
Correct Answer: C. 16N
Explanation
T + ma = mg T = mg - ma = 2 x 10 - 2 x 2 = 16N
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