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November 20, 2014

November 20, 2014

Posted by **Hope** on Tuesday, December 1, 2009 at 6:36pm.

The figure or graph has F (N) along the y axis and velocity along the x axis. A diagonal line drops from positive 10 force to -10 force from 0 cm to 4 cm. and crosses the x axis at 2 cm.

What is its velocity at 2 cm and 4 cm?

What formula do I need to use?

- physics -
**drwls**, Tuesday, December 1, 2009 at 6:58pmIntegrate F dx from 0 to 0.02 m to get the change in kinetic energy (KE) at 2 cm. Use the new value of the KE to get the new velocity. Then do it again for 0.02 to 0.04 m. The KE will decrease, since the force on the particle is in the opposite direction to motion over that interval.

- physics -
**Hope**, Tuesday, December 1, 2009 at 10:20pmPlease explain to me how to integrate-I am unsure exactly what this means in this problem

Thanks

- physics -
**Peace**, Monday, October 24, 2011 at 7:01pmFind the area under the line within each interval

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