Question: The 3D force vectors and can be defined as follows: F , = 4.3i - 6.2j + 4.3k, and F2 = -2.1i - 3.3j +

The 3D force vectors and can be defined as follows: F , = 4.3i - 6.2j + 4.3k, and F2 = -2.1i - 3.3j + 7.1k. Calculate (a) the angle between these two vectors, and (b) the unit vector in the direction of the resultant. a) angle (in degrees, to one decimal place): b) unit vector (each component to two decimal places): n = +

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