Question

plz solve it urgeprocess. . show me the whole process

Answer 1

Hey,
retardation (-a) = 2.5√v
u = 6.25 m/s
v = 0 m/s
t = ?

Now,
Applying the formula,
a = v - u / t
- 2.5√v = 0 - 6.25 / t
- 2.5√v = - 6.25 / t
t = -6.25 / -2.5√v
t = 6.25 / 0 [since v = 0,so √v = 0]
t = 6.25 s.

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