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)
-
24N
- 20N
- 16N
- 4N
- 0N
The correct answer is: A
Explanation
T - ma = mg
T = mg + ma = 2 x 10 + 2 x 2 = 24N