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58. A particle's position as a function of time is described asy(t)-2 +3t+ 4. What is the average velocity of theparticle fromt 0 tot 3sec? [CET (Kurukshetra) 2002](a) 3 m/s(c) 9 m/s(b) 6 m/s(d) 12 m/s |
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Answer» avg. velocity is = total displacement/total time here total displacement = y(3) -y(0) ∆s = 2(3)²+3(3)+4 = 18+9+4 = 31 so, avg velocity = 31/3 = 10.33 m/s so, the closest option would be Option C |
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