JAMB - Physics (2013 - No. 6)
Calculate the apparent weight loss of a man weighing 70kg in an elevator moving downwards with an acceleration of 1.5ms-2.
[g = 10ms-2]
[g = 10ms-2]
686N
595N
581N
105N
คำอธิบาย
Wt loss = mg - m (g - a)
= 70 x 10 - 70 (10 - 1.5) = 105N
= 70 x 10 - 70 (10 - 1.5) = 105N