justinh8
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Homework Statement
I never know when to use either Distance = Velocity x Time or when to use Distance = v1t + 1/2at^2. Please help me and explain when i have to use which
How To Know When To Use Which Motion Equation
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I never know when to use either Distance = Velocity x Time or when to use Distance = v1t + 1/2at^2. Please help me and explain when i have to use which
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hi justinh8! 
they're the same …
if you put a = 0 into s = v1t + 1/2at2,
you get s = v1t (which is really s= vt, since v is constant if a = 0)
so you can always use the 2nd one, and you can use the first one if the speed is constant (ie if the acceleration is 0)
they're the same …
if you put a = 0 into s = v1t + 1/2at2,
you get s = v1t (which is really s= vt, since v is constant if a = 0)
so you can always use the 2nd one, and you can use the first one if the speed is constant (ie if the acceleration is 0)