Q2 Consider The Vectors Ri 50 M 30 And 2 25 M 120 A Express 11 12 In Terms Of Its Cartesian Components 1 (178.14 KiB) Viewed 44 times
Q2: Consider the vectors ři = (50 m, 30%) and 2 = (25 m, 120°). a. Express 11 + 12 in terms of its cartesian components. b. Express 12 -ři in polar coordinates. [A: a. (30.8 m)i + (46.7 m)ḥ, b. (55.9 m, 183°)]
Q1: An object moving in three dimension is described by the equation of motion: ř = (2t – 4t4 m)î - (12t2 m)j + (-44 +673 m)ſ a. Find the instantaneous velocity at t=2 s. b. Find the instantaneous speed at t=2 s. c. Find the acceleration at t=2 s. m [A: a.- (126") i – (48%) 3 + (68") k, b. 151",c.-(1925) – (24.) 5 + (72) K] b .
Q2: An object moving in three dimension is described by the equation of motion: ř = (53 – 10t m)i + (20t m)- (6t2 + 20 m)k a. Find the average velocity between 1 and 3 s. b. Find the average acceleration between 1 and 3 s. A [A: a. (55%) i +(20"); -(24) £,b. (605)-(129) Ã] 2. "
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