Eva K.

asked • 06/02/19

Mechanics question (Vectors)

I'm really confused as to what I'm supposed to do here can someone please explain...


The question is:


The horizontal unit vectors i and j are in the directions east and north respectively.

A model ship of mass 2kg is moving so that its acceleration vector ams^-2 at time t seconds is given by

a=3(2t-5)i+4j. When t=T, the magnitude of the horizontal force acting on the ship is 10N.

Find the possible values of T


-Thank you.

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