Posted by Anonymous on Wednesday, September 12, 2012 at 11:34pm.
A child is traveling 7 m/s on a sled when she passes her younger brother. Here avg acceleration is 2m/s2. How fast is she traveling shen she passes her older brother 6s later?

Physics  Steve, Thursday, September 13, 2012 at 10:17am
v = 7 + 2*6 = 19 m/s
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