Using vectors as a function of time in physics?

Posted on 2015-09-23 07:10:00 in Physics by JOEE

Vector P is a function of time t.

In a specified coordinate system P is given by: P= (A+Bt)i + (A+Ct-Dt^2)j and P is in meters when t is seconds

Given these values (shown without their units): A=15.0, B=7.00, C=20.0, D=4.00

(a) Calculate the time when P points in the +x direction.

(b) Calculate the magnitude of P at the time calculated in part a.

(c) Calculate the time when P make an angle of -45 degrees with the +x axis.

(d) Calculate the magnitude of P at the time calculated in part c.

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