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when t = 0, a particle at (1,0,0) moves towards (4,4,12) with a constant velocity of magnitude of 65 m/s. the position of the particle is measured in meters and time in sec. Assuming constant velocity the position of the particle at t= 2 sec is – (a) (13i – 120j +40k) m (b) (40i +31j – 120k) m (c) (13i – 40j + 12k) m (d) (31i + 40j + 120k) m

when t = 0, a particle at (1,0,0) moves towards (4,4,12) with a constant velocity of magnitude of  65 m/s. the position of the particle is measured in meters and time in sec. Assuming constant velocity the position of the particle at t= 2 sec is –


        (a)    (13i – 120j  +40k) m


        (b)    (40i  +31j – 120k) m


        (c)    (13i  – 40j + 12k) m


        (d)    (31i  + 40j + 120k) m

Grade:11

1 Answers

SAGAR SINGH - IIT DELHI
878 Points
13 years ago

Dear sahil,

The correct answer is c)

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Sagar Singh

B.Tech, IIT Delhi

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