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a lift is moving up with a constant velocity of 5 cms s-1. A bolt is detached from the lift then its initial velocity is

a lift is moving up with a constant velocity of 5 cms s-1. A bolt is detached from the lift then its initial velocity is

Grade:6

1 Answers

Abhishek k Pathak
13 Points
5 years ago
The initial velocity of freely falling bolt must be zero .But,here in this case the lift is ascending upwards. therefore,for initial velocity of bolt the velocity of lift must be considered.
By relative velocity 
V(bolt:lift)=V(bolt)-V(lift)
                =0 - 5
                =-5m/s

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