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AEM 264 DYNAMICS FINAL EXAM QUESTIONS
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AEM 264 - DYNAMICS FINAL EXAM QUESTIONS In curvilinear motion the direction of the instantaneous velocity is always In curvilinear motion, the direction of instantaneous acceleration is always If the position of a particle is defined by r = [(1.5t^2+1)i + (4t-1)j] (m), its speed at t=1 s is The...

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  • March 23, 2024
  • 2
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • aem
  • 264
  • dynamics

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  • NU1426
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AEM 264 - DYNAMICS FINAL EXAM QUESTIONS

1). In curvilinear motion the direction of the instantaneous velocity is always

 Ans: tangent to the path


2). In curvilinear motion, the direction of instantaneous acceleration is always

 Ans: tangent to the hodograph


3). If the position of a particle is defined by r = [(1.5t^2+1)i + (4t-1)j] (m), its speed at t=1 s is

 Ans: 5 m/s


4). The path of a particle is defined by y=0.5x^2. if the component of its velocity along the x-
axis at x = 2 m is vx = 1 m/s, its velocity component along the y-axis at this position is

 Ans: 2 m/s


5). If a particle has moved from a to b along the circular path in 4s, what is the average velocity
of the particle?
(semi circle where r = 5m)

 Ans: 2.5 i m/s


6). The position of a particle is given as r = (4t^2 i - 2x j) m. determine the particle's
acceleration.

 Ans: (8i - 16j) m/s^2


7). The downward acceleration of an object in free-flight motion is

 Ans: 9.81 m/s^2




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