An object has an initial velocity u and an acceleration a. The object moves in a straight line through a displacement s and has final velocity v.
The above quantities are related by the equation shown.
${v^2} = {u^2} + 2as$
Which condition must be satisfied in order for this equation to apply to the motion of the object?
1 )
The direction of a is constant and the direction of a is the same as the direction of s.
2 )
The direction of a is constant and the direction of a is the same as the direction of u.
The magnitude of a is constant and the direction of a is constant.
4 )
The magnitude of a is constant and the direction of a is the same as the direction of v.
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