An object retards uniformly at the rate of 4 m/s² for 5s and attains a velocity of 30 m/s. What was it's initial velocity?
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Given :-
• Final velocity = v = 30 m/s
• Retardation = a = - 4 m/s^2
• Time period = t = 5 s
To find :-
• Initial velocity = u
Using equation a = ( v - u ) / t
We get ,
( - 4 ) * ( 5 ) = 30 - u
So we get u = 50 m/s
• Final velocity = v = 30 m/s
• Retardation = a = - 4 m/s^2
• Time period = t = 5 s
To find :-
• Initial velocity = u
Using equation a = ( v - u ) / t
We get ,
( - 4 ) * ( 5 ) = 30 - u
So we get u = 50 m/s
Answered by
1
I have attached hand written solution..
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