Force and Momentum

Force and Momentum#

The momentum of an object as a function of time is given by \(\vec{p} = (\)-4t^3 + 5t^2 + 9t\()\hat{\imath} + (\)3t^3 - t^2 + 6t\()\hat{\jmath}\) where \(p\) is in \(kg\cdot m/s\) and \(t\) is in seconds.

Part 1#

What is the net force on the object at \(t=\) 15.9 \(s\)?

Answer Section#

  • 0 N

  • (-2870.0\(\hat\imath\) + 2250.0\(\hat\jmath\)) N

  • (2870.0\(\hat\imath\) - 2250.0\(\hat\jmath\)) N

  • (-2870.0\(\hat\imath\) - 2250.0\(\hat\jmath\)) N

  • (2870.0\(\hat\imath\) + 2250.0\(\hat\jmath\)) N

  • (5740.0\(\hat\imath\) + 2250.0\(\hat\jmath\)) 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.

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