Answer:
B.7.5m/s2
Explanation:
average acceleration=change invelocity/time taken
a=(60-30)/4
=7.5m/s2
The answer is A. Solids have both definite shape and denfinite volume.
Answer:
that is not physics pls dont do that again
Explanation:
That's a true statement ... not a question.
When the kinetic energy of an object changes, energy
may be transferred either to or from the object.