Question

6 m/s acceleration is given to a body moving with a velocity 30 m/s

What is the time needed for it to come to rest?

What is the displacement in this time?
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Answer 1

Answer:

a = (0-30) /t

6=-30/t

t=-5s.

time cannot be negative therefore time=5s.

S=ut+1/2at^2

S=30×5+1/2×6×5×5

S=150+75

S=225m.

Hope that's Ok....