When the lift moves upward with a uniform acceleration "a", the apparent value of g inside the lift changes to:
Correct answer: A. g + a
- A. g + a
- B. g - a
- C. g - 2a
- D. g + 2a
Explanation
When the lift moves upward with a uniform acceleration a, the apparent weight experienced by a person inside the lift is given by the equation W =m(g+a), where m is the mass of the person, g is the acceleration due to gravity, and a is the uniform acceleration of the lift.The apparent weight is the force experienced by the person, and in this case, it includes both the force due to gravity (m⋅g) and the additional force due to the upward acceleration of the lift (m⋅a).
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