tamar5736 tamar5736

21-06-2022
Physics

contestada

When vectors b+a= 5i-j & vectors b-a=i-7j, what is the magnitude and direction of vector a

Respuesta :

LammettHash LammettHash

21-06-2022

Eliminate b by combining b + a and b - a, and solve for a :

(b + a) - (b - a) = (5i - j) - (i - 7j)

2a = 4i + 6j

a = 2i + 3j

Now compute the magnitude and direction.

mag: ||a|| = √(2² + 3²) = √13

dir: tan(θ) = 3/2 ⇒ θ = arctan(3/2) ≈ 56.3°

Answer Link

Otras preguntas

Write thirty-six thousandths in standard form.

What is the absolute value of 35

How much will it cost for Gary to reserve 13 lanes?

what is the hyphen notation of nitrogen

Sam blinks every 12 seconds. martha blinks every 8 seconds. they blink together at midnight. how many seconds will pass before they blink together again

17cm/min=_________m/h

What did the Egyptians do that showed they believed in the afterlife? A. They made jewelry out of lapis lazuli gem stones. B. They filled tombs with food, cloth

What is 5 1/2 divided by 3/4?HELP please I need immediately!!

Is the function linear or non linear X -2 0 1 3 4 Y 4 8 10 14 16 A linear B nonlinear

Michelle wants to classify an organism that she is studying in lab. The organism is multicellular, makes its own food, and is unable to move around its environm