Fundamental Problem 2.20 Figure 1 of 1 4 ft 4 ft Part A Determine the length of

Question

Fundamental Problem 2.20 Figure 1 of 1 4 ft 4 ft Part A Determine the length of the rod. (Figure 1) Express your answer to three significant figures and include the appropriate units TAB Value Units Submit My Answers Give Up Part B Determine the position vector directed from A to B Express your answer in terms of the unit vectors i,jandk. To denote vectors in your answers, be sure to select the "vec' button. AE VeC AB Submit My Answers Give Up Part C Determine the angle 6? Express your answer to three significant figures and include the appropriate units

Explanation / Answer

Here ,

a) for length of rod ,

L = sqrt(2^2 + 4^2 + 4^2)

L = 6

the length of rod is 6 feet

part B)

positon vector from A to B is

rAB = -4 i + 2 j + 4 k feet

the position vector from A to B is -4 i + 2 j + 4 k feet

part C )

angle theta = arcsin(sqrt(2^2 + 4^2 )/ L)

theta = arcsin(0.745)

theta = 48.2 degree

the angle theta is 48.2 degree

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