Find the velocity and acceleration of the following vector-valued functions. r\left(t\right)=e^{-t}i+e^tj+4k

Grady Turner

Grady Turner

Answered question

2021-11-27

Find the velocity and acceleration of the following vector-valued functions.
r(t)=eti+etj+4k at t=0

Answer & Explanation

Alicia Washington

Alicia Washington

Beginner2021-11-28Added 23 answers

Step 1
Given vector:
r(t)=eti+etj+4k
Step 2
Find velocity
r(t)=eti+etj+4k
velocity v=ddt(r(t))=eti+etj+0k
=eti+etj for t=0
v(0)=e0i+e0j
=i+j
=(1,1,0)
Step 3
Find acceleration
a(t)=ddt(v(t))
=eti+etj+0k
for t=0
a(0)=e0i+e0j+0k
=i+j
=(1,1,0)

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