Posted by **Shweta** on Monday, February 18, 2013 at 3:20pm.

20 (part 1 of 2)

The initial speed of a body is 6.61 m/s.

What is its speed after 3.92 s if it accelerates

uniformly at 3.46 m/s/s?

Answer in units of m/s

21 (part 2 of 2) 10.0 points

What is its speed after 3.92 s if it accelerates

uniformly at −3.46 m/s/s?

Answer in units of m/s

What is the answer for 21?

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