Posted by **Kristi** on Wednesday, July 13, 2011 at 11:44pm.

A person in a kayak starts paddling, and it accelerates from 0 to 0.498 m/s in a distance of 0.554m. If the combined mass of the person and the kayak is 62.6, what is the magnitude of the net force acting on the kayak?

- Physics -
**drwls**, Thursday, July 14, 2011 at 4:52am
Use the formula

F = m a

to get the force in Newtons.

In this case, m is the combined mass of kayak and the person paddling.

You neglected to provide units for the combined mass. I assume it is kilograms.

For the acceleration, a, assume uniform acceleration, in which case

Vfinal = sqrt(2aX)

a = Vfinal^2/(2X)

X = 0.554 m

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