needanswers1 needanswers1

04-10-2016
Physics

Answered

A 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 ∆v?
9m/s
7m/s
-7m/s
-7m/s2? choose one

Verified Answer :

JechuHernandez JechuHernandez

04-10-2016

You want to know the difference between the two velocities, so you have to think 9 m/s - 2 m/s. The result is 7 m/s, the second option of your list. Hope that was helpful, have a great day!

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