changes its direction at constant speed
mauntains a constant linear speed
covers equal distances in equal times in a straight line
is acted upon by balanced forces
none of the above
Explanation
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Discussions (9)
The correct answer is:
A. Changes its direction at constant speed
Explanation:
Acceleration is defined as the rate of change of velocity. Since velocity is a vector (it has both magnitude and direction), a body accelerates when:
Its speed changes (either increases or decreases).
Its direction changes, even if the speed remains constant.
For example, in uniform circular motion (like a car turning a corner or a planet orbiting the Sun), the object moves at a constant speed but continuously changes direction, meaning it is always accelerating.
all d options re wrong,,dia must b change of speed/velocity wit time 4 us 2 talk of acceleration.. even dat option C is uniform velocity (I.e d answer)
Wrong @myschool... A body accelerates when it covers increasing distances in equal time intervals
