Question

A particle moves in a straight line with an initial velocity of 30 m/s and constant acceleration 30 m/s2, (a) What is its displacement at t = 5 s? (b) What is its velocity at this same time?

Answer 1

Answer:

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Explanation:

u=30

a=30

v=?

u=v+at2 (square)

30=v+30*5*5

30=v+750

30-750 = v

-720m/s = v

displacement = final velocity- initial velocity

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