Question

HURRY!!!!! ball is rolling down a hill. At one point near the top of the hill, its velocity is 2 m/s. Further down the hill, its velocity is 9 m/s. What is Δv? 9 m/s 7 m/s -7m/s -7m/s2

Answer 1

The symbol ' Δ ' is the Greek letter 'delta'.
It's usually used to mean the 'change' in something.

Δv ("delta v") in this question means the change in velocity.

The change is just (the later value) minus (the earlier value) .

That's (9 m/s) minus (2 m/s)  =  7 m/s .

Answer 2

Answer:

7 m/s

Explanation:

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