Question

1. A lift is coming from 8th floor and is just about to reach 4 floor. Taking
ground floor as origin and upward as the positive direction for all the
quantities, which one of the following is correct?
(a) x = -ve, y = -ve, a = +ve
(b) x = +ve, y = -ve, a = -ve
(C) x = +ve, v = -ve, a = +ve
(d) x = +ve, v = +ve, a = -ve​

Answer 1

Answer:

As the lift is coming in downward directions, displacement will be negative. ... When the lift reaches 4th floor is about to stop hence, motion is retarding in nature hence, x<0,a>0. As displacement is in negative direction, velocity will alsobe negative i.e., v<0.

Answer 2

B) x=+ve, y=-ve,a=-ve is the answer. Hope it helps you pls mark as the BRAINLIEST ANSWER.