Vector V 1 is 6.9 units long and points along the negative x axis. Vector V 2 is
ID: 1405914 • Letter: V
Question
Vector V 1 is 6.9 units long and points along the negative x axis. Vector V 2 is 8.4 units long and points at 35 to the positive x axis.
What are the x and y components of vector V 1?
Express your answers using two significant figures. Enter your answers numerically separated by a comma.
What are the x and y components of vector V 2?
Express your answers using two significant figures. Enter your answers numerically separated by a comma.
Determine the magnitude of the sum V 1+V 2.
Express your answer using two significant figures.
Determine the angle of the sum V 1+V 2.
Express your answer using two significant figures.
Explanation / Answer
Here ,
for the vector V1
x - component of V1 = -6.9
y - component of V1 = 0
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for the vector V2
x - component of V2 = 8.4 * cos(35)
x - component of V2 = 6.88
y - component of V2 = 8.4 * sin(35)
y - component of V2 = 4.818
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for the sum
sum = V1 + V2
sum = -6.9 i + 6.88 i + 4.818 j
sum = 4.818 j
the magnitude of sum is 4.818 m
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as sum is in y direction
angle of sum is 90 degree
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