Question

The position function of a moving particles is give by r(t) =
[(5 m.s^{-1})t + (6 m.s^{-2})t^{2}]
* i* + [(7.0 m) - (3
m.s

(i) the displacement of the particle from t = 2 s to t = 3 s. (ii) The instantaneous velocity and acceleration at t = 3 s.

Answer #1

please do 1,2 and 3 thanks
1.The position of a particle moving along the x axis is
given in centimeters by x = 9.12 + 1.75
t3, where t is in seconds. Calculate
(a) the average velocity during the time interval
t = 2.00 s to t = 3.00 s; (b)
the instantaneous velocity at t = 2.00 s;
(c) the instantaneous velocity at t =
3.00 s; (d) the instantaneous velocity at
t = 2.50 s; and (e) the...

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A particle moves with position r(t) = x(t) i + y(t) j where
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(c) Find the average acceleration from 1.00 s to 3.00 s.
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Find its velocity, v(t), and position,
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The position of a particle moving along the x axis is
given in centimeters by x = 9.31 + 1.02
t3, where t is in seconds. Calculate
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t = 2.00 s to t = 3.00 s; (b)
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(c) the instantaneous velocity at t =
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the instantaneous velocity at t = 2.00 s;
(c) the instantaneous velocity at t =
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(c) the instantaneous velocity at t =
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1-The velocity of a particle is v = { 6 i + (
28 - 2 t ) j } m/s, where t is in seconds. If r=0
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ft, 5 ft), is subjected to an acceleration of a={ 3 t
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