Math  check answer
posted by Brownie .
Given v = 4t  9t3, find the acceleration when t = 1 s.
acceleration in m/s2 =
My Answer
V'=427t2
V"= 54t
V"(1)= 54
acceleration in m/s2 = positive 54
Can you please confirm this is correct????
Thanks

Your calculus is correct, but I can't confirm your positive acceleration.