The equation r (t)=(12 sin t) i +(5 cos t) j +(4t) k is the position of
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Question:
The equation
r(t)=(12sint)i+(5cost)j+(4t)k
is the position of a particle in space at time t. Find the particle's velocity and acceleration vectors. Then write the particle's velocity at
t=
as a product of its speed and direction.
The velocity vector is
v(t)=enter your response here
i+enter your response here
j+enter your response here
k.
Part 2The acceleration vector is
a(t)=enter your response here
i+enter your response here
j+enter your response here
k.
Part 3The velocity vector at
t=
written as a product of the speed and direction is
v()=enter your response here[enter your response here
i+enter your response here
j+enter your response here
k].
(Type exact answers, using radicals as needed.)
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