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Question

# Which of the following are equations of motion for an object moving with a uniform velocity?

A
a=0,v=u
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B
s=ut
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C
v2u2=0
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D
All the above
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Solution

## The correct option is C All the aboveIn uniform motion, the acceleration is zero. So, the 1st equation of motion v=u+at becomes v=u as a=0.The 2nd equation of motion s=ut+12at2 becomes s=ut as a=0.The 3rd equation of motion v2−u2=2as becomes v2−u2=0.Hence, the equation of motion in this case are v=u, s=ut and v2−u2=0.

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