A multistorey building has parking floor at the basement . A kift moves at the rate of 4m per seconds. If the lift starts coming down from aheight of 40m, then finds its position after 3minutes.
Answers
Answered by
4
u= 0 m/s
v= 4 m/s
t = 3 min = 3×60 = 180 sec
v= u + at
⇒4 = a×180
⇒a = 4/180 = 1/45 m/s²
v² - u² = 2as
⇒s = [(4)² -(0)²]/2×(1/45) = (16 ×45)/2 = 360 m
position of the lift will be 360 m from the point to start.
v= 4 m/s
t = 3 min = 3×60 = 180 sec
v= u + at
⇒4 = a×180
⇒a = 4/180 = 1/45 m/s²
v² - u² = 2as
⇒s = [(4)² -(0)²]/2×(1/45) = (16 ×45)/2 = 360 m
position of the lift will be 360 m from the point to start.
Similar questions