Question

4. Define acceleration and give its Sl unit, When
is acceleration of a body negative? Give two
examples of situations in which acceleration of
the body is negative.
5. Distinguish between uniform motion and
non, uniform motion. Is uniformly accelerated
motion uniform motion? Give one example each
of uniform and non-uniform motion.​

Answer 1

Explanation:

acceleration is the rate of change of velocity of an object with respect to time. it's SI unit is metre per second square(m/s)2. ex- 1. a car applying break. 2.a ball thrown vertically.

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