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A body at rest move with a uniform acceleration of 2.5ms/^2 for 30seconds. How far does it cover during the journey? ​
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14 votes
14 votes
A body at rest move with a uniform acceleration of 2.5ms/^2 for 30seconds. How far does it cover during the journey? ​

User Exiva
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1 Answer

26 votes
26 votes
Answer
1125m or 1.1km


SOLUTION
U = 0ms^-1 (because the body is said to be at rest)
a = 2.5ms^-2
t = 30seconds
S (distance) = ?

From the equations of motion
S = ut + 1/2at^2
S= (0 x 30) + (1/2 x 2.5 x 30^2)
S = 0 + 1125
S= 1125m or 1.1km
User Jelisa
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