WAEC - Physics (1996 - No. 10)
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
คำอธิบาย
T - ma = mg
T = mg + ma = 2 x 10 + 2 x 2 = 24N
T = mg + ma = 2 x 10 + 2 x 2 = 24N