the distance travelled by a body in time 't' is given as S=ut+1/2at².how the formula is modified. 1)body starts from rest. 2)mention of body is uniform. 3)velocity of body is decreasing.
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1. If it starts from rest,
initial velocity(u) =0
Then the formula becomes
s= 1/2 at^2
2. If it is in uniform motion,
Acceleration (a) is 0
So, s = ut
3. If the velocity is decreasing, it is a case of negative acceleration also called as deceleration. Then,
S = ut - 1/2 at^2
initial velocity(u) =0
Then the formula becomes
s= 1/2 at^2
2. If it is in uniform motion,
Acceleration (a) is 0
So, s = ut
3. If the velocity is decreasing, it is a case of negative acceleration also called as deceleration. Then,
S = ut - 1/2 at^2
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