Question Detail

PHY 101 PHY 101 Past Questions Objective Question

Question

Vectors A and B are given as A = 3i + 4j - 2k and B = 2i - 6j + 3k. Evaluate A x B.

Options
A 24i - 5j + 20k
B -13j - 26k
Correct Answer
C 24i + 5j - 4k
D 24i - 5j - 4k
Correct Answer

Option B is the correct answer.

Detailed Explanation

The cross product of vectors -13j - 26k

Hint

Compute the determinant of a matrix with i, j, k in the first row, components of A in the second, and components of B in the third.

Question Info