SOLUTION: I am having a hard time solving this problem. Need some assistance. Problem: The acceleration a(in m/s2power) of an object is a=(t+4)-1power. What is the velocity for t = 4s, if

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Question 201883This question is from textbook Basic Technical Mathematics with Calculus
: I am having a hard time solving this problem. Need some assistance.
Problem: The acceleration a(in m/s2power) of an object is a=(t+4)-1power. What is the velocity for t = 4s, if the initial velocity is zero.

Thank you,
Jimmy This question is from textbook Basic Technical Mathematics with Calculus

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Given a=+%28t%2B4%29%5E%28-1%29
v%5B0%5D=0
t=4
Knowing that:
v+=+at+%2B+v%5B0%5D
So:
v%28t%29+=+%28t%2B4%29%5E%28-1%29%2A%28t%29+%2B+0
When t = 4, we get
v%284%29+=+8%5E%28-1%29+%2A+4
v%284%29+=+%281%2F8%29+%2A+4
v%284%29+=+1%2F2 m/s