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A 20.0 kg object is at rest, and then speeds up to 16.0 m/s. how much work was done on this system? 320 j 2,560 j 2,880 j 5,120 j
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42 votes
42 votes
A 20.0 kg object is at rest, and then speeds up to 16.0 m/s. how much work was done on this system? 320 j 2,560 j 2,880 j 5,120 j

User Till Rohrmann
by
2.3k points

2 Answers

20 votes
20 votes

Answer: B 2560j

Step-by-step explanation:

i got it right on edge 2022

User Dres
by
2.7k points
17 votes
17 votes

Answer:

Step-by-step explanation:

Given:

M = 20.0 kg

V₀ = 0 m/s

V = 16.0 m/s

___________

A - ?

A = M·V² / 2

A = 20.0·(16.0)² / 2 = 2 560 J

User Jiloc
by
3.0k points
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