Understanding, representing and using vectors

• 3i + 4j

• -4i - 3j

• -3i - 4j

• 3i - 4j

Resolve into components:

1000 m/s [193°]

• [ -974, -225 ]

• [ 974, 225 ]

• [ 225, 974 ]

• [ -225, -974 ]

Given an initial point R ( -12, 4 ) and terminal point S ( 28, -17 ), find the component form of the vector RS. Hint: get it into the pointy brackets.

• 〈14,-13〉

• 〈-14,13〉

• 〈-40,-21〉

• 〈40,-21〉

Which is the correct math for converting this vector to component form?

•  $<10\cos58\degree,10\sin58\degree>$  

•  $<10\cos238\degree,10\sin238\degree>$  

•  $<10\cos122\degree,10\sin122\degree>$  

•  $<10\cos\left(-58\degree\right),10\sin\left(-58\degree\right)>$  

Write in component form.

• 〈0, 4〉

• 〈8, 2〉

• 〈2, 8〉

• 〈0, 2〉

กำหนดให้ u = 3i+5j และ AB= u ถ้าAมีพิกัด(1,-3)

ข้อใดเป็นพิกัดของฺ B

• (-4,-2)

• (-4,2)

• (4,-2)

• (4,2)

Write the vector from B to A...

• AB

• - a

• a

• 1/2 p + 1/2 r

• 1/2 p - 1/2 r

• 1/2 r - 1/2 p

• p - 1/2 r

Which of the following is the Component form of Vector AB if the initial point is A (3,5) and the terminal point is B ( 8, 7)

• (11,12)

• (-11,-12)

• (5, 2)

• (-5,-2)

Determine the components of the vector with magnitude 10, 60 degrees from the positive x-axis.

• <5, 8.7>

• <8.7, 5>

• <59.1, 10.4>

• <10.4, 59.1>