Question

An object is moving in a straight line with uniform velocity. Which of the following statements can be inferred from this information?

• A. It covers equal distances in equal interval of time.
• B. It covers unequal distances in equal interval of time.
• C. Acceleration is constant.
• D. Acceleration is zero.

Answer 1

Answer: (A), (D)

Acceleration is zero.

When an object is moving with uniform velocity, the motion is known as uniform motion. This means is covers equal distances in equal interval of time. Also for an object whose velocity is constant, acceleration is zero. This can be seen from the first equation of motion as well.
$v=u+at$. Since velocity is constant, $v=u$
or, $0=at\to a=0$