The position ofa particle is given byr=3.0hati-2.0t^(2)hatj+4.0hatkmwhere t is in seconds and the coefficients have proper units for r to be inmetres . (a)Find the v and a of the particle ? (b)What is the magnitude and direction of velocity of the particle at t=2.0s ?

The position ofa particle is given byr=3.0hati-2.0t^(2)hatj+4.0hatkmwh

1.	The position ofa particle is given byr=3.0hati-2.0t^(2)hatj+4.0hatkmwhere t is in seconds and the coefficients have proper units for r to be inmetres . (a)Find the v and a of the particle ? (b)What is the magnitude and direction of velocity of the particle at t=2.0s ?
Answer» <html><body><p><br/></p>Answer :(a) `v(t)=(3.0hati-4.0thatj)<a href="https://interviewquestions.tuteehub.com/tag/hata-2693428" style="font-weight:bold;" target="_blank" title="Click to know more about HATA">HATA</a>(t)=-4.0hatj`<br/>(b) `8.54 " ms "^(-1),<a href="https://interviewquestions.tuteehub.com/tag/70-333629" style="font-weight:bold;" target="_blank" title="Click to know more about 70">70</a>^(@)` with <a href="https://interviewquestions.tuteehub.com/tag/x-746616" style="font-weight:bold;" target="_blank" title="Click to know more about X">X</a> - <a href="https://interviewquestions.tuteehub.com/tag/axis-889931" style="font-weight:bold;" target="_blank" title="Click to know more about AXIS">AXIS</a>.</body></html>