The position vector of a particle is r(t). Find the requested vector.The velocity at t = 3 for r(t) = (8 - 4t2)i + (9t + 7)j - e-6tk
A. v(3) = -24i + 9j - 6e-18k
B. v(3) = -24i + 9j + 6e-18k
C. v(3) = 24i + 9j + 6e-18k
D. v(3) = -12i +9j + 6e-18k
Answer: B
Mathematics
You might also like to view...
Evaluate as requested.Evaluate the polynomial x2+ 2y2- 3xy for x = 2 and y = 5.
A. 54 B. 84 C. -6 D. 24
Mathematics
Determine whether the statement is true or false.8 ? 2 ? 7 + 9
A. True B. False
Mathematics
Complete the identity.cos (? + ?) cos (? - ?) = ?
A. sin2 ? - sin2 ? B. cos2 ? + sin2 ? C. cos2 ? - sin2 ? D. cos2 ? - sin2 ?
Mathematics
Write words for the following.c - (-2)
A. 2 minus c B. 2 minus negative c C. c minus 2 D. c minus negative 2
Mathematics