A particle P is moving on the x axis and its acceleration a ms-,t seconds after a given instant, is given by a = 6t - 18 The particle is initially at the origin O, moving with a speed of 15 m/s in the positive x direction. Determine the times when P is instantaneously at rest (v=0m/s). a. t = ls, 5s Ob.t=3s, 7s O c. t=2s, 5s Od. t = 2s, 4s O e.t=1s, 7s
A particle P is moving on the x axis and its acceleration a ms-,t seconds after a given instant, is given by a = 6t - 18 The particle is initially at the origin O, moving with a speed of 15 m/s in the positive x direction. Determine the times when P is instantaneously at rest (v=0m/s). a. t = ls, 5s Ob.t=3s, 7s O c. t=2s, 5s Od. t = 2s, 4s O e.t=1s, 7s
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Transcribed Image Text:A particle P is moving on the x axis and its acceleration a ms-²,t seconds after a given instant,
is given by
a = 6t - 18
The particle is initially at the origin O, moving with a speed of 15 m/s in the positive x direction.
Determine the times when P is instantaneously at rest (v=0m/s).
a. t = ls, 5s
b. t=3s, 7s
O c. t = 2s, 5s
O d. t=2s, 4s
O e.t=1s, 7s
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