Difference berween uniform velocity and non uniform velocity
in 4 points

Uniform velocity involves a straight-line motion over equal distance and in equal time intervals. Non-uniform motions involve unequal distances in equal interval of time.

Explanation:

A body moving with uniform velocity occurs when it travels in  a straight line path, and covers equal distances in equal time intervals.

Example a graph of a bike covering equal distance in equal time intervals.

A body moving with a non-uniform velocity occurs when it travels to cover unequal distance in equal intervals of time. Example a bike travelling in a crowded road.

the pull of gravity on the rocket decreases

the answer is d. 4

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