A lift is coming from 8 th floor and is just about to reach 4 th floor. Taking ground floor as origin and positive direction upwards for all quantities, which one of the following is correct?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
As lift is coming from 8 th to 4 th floor, it is retarding, i.e., a is acting upwards, so a > 0 and the value of x becomes less hence negative, i.e., x < 0, velocity is downwards (i.e., negative) so, v < 0.
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