find the time in following question

Asked by  | 11th Jun, 2008, 06:00: PM

Expert Answer:

use the formula v = u + at

v is final velocity which is zero in this case ,

a is retardation whose value is  -1.2 m/sec2

calculate the u in terms of t

and now use the formul s=ut+at2/2

put the value of s in this eq. which is 12m and subsitude the value of u from above eq. and calculate the value of t.

Answered by  | 11th Jun, 2008, 11:11: PM

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