Force and Momentum#

The momentum of an object as a function of time is given by \(\vec{p} = (\)-8t^2 + 9t\()\hat{\imath} + (\)-t^3 + 3t^2 + 3t\()\hat{\jmath}\) where \(p\) is in \(kg\cdot m/s\) and \(t\) is in seconds.

Part 1#

What is the net force on the object at \(t=\) 3.47 \(s\)?

Answer Section#

  • 0 N

  • (-46.5\(\hat\imath\) - 12.3\(\hat\jmath\)) N

  • (46.5\(\hat\imath\) + 12.3\(\hat\jmath\)) N

  • (-46.5\(\hat\imath\) + 12.3\(\hat\jmath\)) N

  • (46.5\(\hat\imath\) - 12.3\(\hat\jmath\)) N

  • (93.0\(\hat\imath\) - 12.3\(\hat\jmath\)) N

Attribution#

Problem is licensed under the CC-BY-NC-SA 4.0 license.
The Creative Commons 4.0 license requiring attribution-BY, non-commercial-NC, and share-alike-SA license.