Q: A lift is coming form 8th floor and is just about to reach 4 the floor. Taking ground floor as origin and positive direction upwards for all quantities, which one of the following is correct ?
(a) x < 0,v < 0, a > 0
(b)x > 0 , v < 0 , a < 0
(c) x > 0 , v < 0 , a > 0
(d) x > 0,v > 0,a > 0
Click to See Answer :
Ans: (a)