A particle P is moving in the xy-plane. At time t seconds, where > 0, particle...

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A particle P is moving in the xy-plane. At time t seconds, where > 0, particle P is moving with acceleration ams where a-(1-3r)i+(2r-2rj In this question, solutions relying on calculator technology are not acceptable. [In this question, position vectors are given relative to a fixed origin O.] At time 1-0 P passes through the point with position vector (i+j)m P is moving with velocity (31-2j)ms (a) Find the velocity of P at timer seconds, where r>0 . . (b) Find the position vector of P relative to O, when the acceleration of P is parallel to (-i-j). (3) A particle P is moving in the xy-plane. At time t seconds, where > 0, particle P is moving with acceleration ams where a-(1-3r)i+(2r-2rj In this question, solutions relying on calculator technology are not acceptable. [In this question, position vectors are given relative to a fixed origin O.] At time 1-0 P passes through the point with position vector (i+j)m P is moving with velocity (31-2j)ms (a) Find the velocity of P at timer seconds, where r>0 . . (b) Find the position vector of P relative to O, when the acceleration of P is parallel to (-i-j). (3)

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