Laws Of Motion Question 195

Question: A body of mass 4 kg weighs 4.8 kg when suspended in a moving lift. The acceleration of the lift is [Manipal MEE 1995]

Options:

A) 9.80ms2 downwards

B) 9.80ms2 upwards

C) 1.96ms2 downwards

D) 1.96ms2 upwards

Show Answer

Answer:

Correct Answer: D

Solution:

As the apparent weight increase therefore we can say that acceleration of the lift is in upward direction. R=m(g+a) therefore4.8 g=4(g+a) thereforea=0.2g=1.96 m/s2



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