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Vedmedyk [2.9K]
3 years ago
13

Please help me with this question guys, I’m going to fail:(

Mathematics
1 answer:
Sauron [17]3 years ago
6 0

Answer:

A)

Step-by-step explanation:

uv = u1v1 + u2v2 = (1/3)*18 + 4*(-3/2) = 6 - 6 = 0

Because uv=0, these 2 vectors  are orthogonal.

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(d) The particle moves in the positive direction when its velocity has a positive sign. You know the particle is at rest when t=0 and t=3, and because the velocity function is continuous, you need only check the sign of v(t) for values on the intervals (0, 3) and (3, 6).

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Step-by-step explanation:

i dont wnow the answer!???

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