A lift of hight 3 meter is moving up with an accerelation of 2 m/ s^2. A ball is dropped from the lift top when it is moving with a speed of 5m/ s. At what time ball touch the lift floor?
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Given s= 3m
a= 2m/s2
u= 8m/s
g= 10m/s2
using the kinematical equation
s= ut + ½ at2
or s= ut + ½ (a + g) t2/2
3 = 8 x t + ½ x 12 x t2
Or
6t2 + 8t -3 = 0
t= 0.3052 s
a= 2m/s2
u= 8m/s
g= 10m/s2
using the kinematical equation
s= ut + ½ at2
or s= ut + ½ (a + g) t2/2
3 = 8 x t + ½ x 12 x t2
Or
6t2 + 8t -3 = 0
t= 0.3052 s
Answered by
0
Answer:
0.3052 s
Explanation:
13 December 1946: An 'Objective Resolution' was presented by Jawaharlal Nehru, laying down the underlying principles of the constitution. which later became the Preamble of the constitution.
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