A moving train is brought to rest within 20 second by applying brakes. Find the initial velocity if the retardation due to brakes is 2m/second Square
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Given,
v=0
a= - 2m/s square
t= 20 seconds
u=?
Now, we know
v=u+at
0= u+ (-2)(20)
0= u+(-40)
40= u or u= 40
Therefore initial velocity= 40m/s
v=0
a= - 2m/s square
t= 20 seconds
u=?
Now, we know
v=u+at
0= u+ (-2)(20)
0= u+(-40)
40= u or u= 40
Therefore initial velocity= 40m/s
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