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Show that the area of the triangle conta...

Show that the area of the triangle contained between the vectors `vecA andvec B` is one-half the magnitude of `vecA xx vecB.`

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`F = ma implies a = (F)/(m) = (20)/(5) = 4 m//s ^(2)`
`v =0` (initial point) `= > v = u + at`
`implies v = 0 + 4 xx 10 = 40 m//s.`
`KE = 1/2 mv ^(2) = 1/2 xx 5 xx (40) ^(2) = 4000 `Joule
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