X2 M/C (bh22m23+)

What is the length of the vector -2i - 3j + 6k ?

• 1

• 7

• 11

• 49

What is the converse of the following statement?

“If a point is in the first quadrant, then its coordinates are positive”.

• If a point is not in the first quadrant, then its coordinates are positive.

• If a point is not in the first quadrant, then its coordinates are not positive.

• If the coordinates of a point are positive, then the point is in the first quadrant.

• If the coordinates of a point are not positive, then the point is not in the first quadrant.

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Converse of 𝑃→𝑄 is 𝑄→𝑃

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What is the angle, to the nearest degree, between the vectors

i +2j - 3k and -2i - 4j + 6k ?

• 0

• 119

• 136

• 180

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Consider the statement:

“If my computer is not working, then I cannot finish my homework”.

What is the negation of the above statement?

• My computer is working, and I can finish my homework.

• My computer is working, but I cannot finish my homework.

• My computer is not working, and I can finish my homework.

• My computer is not working, but I cannot finish my homework. .

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A particle is moving in simple harmonic motion with period 3 and amplitude 2.

Which is a possible expression for the velocity, 𝑣, of the particle?

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Which of the following statements is false?

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