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3 years ago

What is the resultant of a and b if a = 3i 3j and b = 3i − 3j?

Physics

2 answers:

GrogVix [38]3 years ago

6 0

Answer:

Resultant, $R=6i$

Explanation:

Given that,

Vector $A=3i+3j$

Vector $B=3i-3j$

Vectors are those quantities that have both magnitude and direction. We need to find the resultant A and B. It can be done by adding two vectors such that,

$R=A+B$

$R=(3i+3j)+(3i-3j)$

$R=6i$

So, the resultant of A and B is 6i. Hence, this is the required solution.

ss7ja [257]3 years ago

3 0

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Romashka [77]

Answer:

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Explanation:

Using:

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Force on particle due to magnetic field:

$F_{x2}= |q|*v*B*sin \alpha = (6.72*10^{-6} )*(1.15)*(sin90)*v = (7.728*10^{-6})*(v)$

$F_{x2}$ is in the positive x direction as $F_{x1}$ is in the negative x direction while net force is in the positive x direction.

Magnetic field is in the positive Z direction, net force is in the positive x direction.

According to right hand rule, Force acting on particle is perpendicular to the direction of magnetic field and velocity of particle. This would mean the force is along the y-axis. As this is a negatively charged particle, the direction of the velocity of the particle is reversed. Therefore velocity of particle, v, has to be in the negative y direction.

Now,

$F_{xnet}- F_{x1 } = F_{x2 }$