+91-87964 74404
FlagBACK
Question icon
Grade 10Wave Motion

A vector parallel to 5i^+2j^ and having a magnitude of 52 is

Profile image of Divya
9 Years agoGrade 10
Answers icon

1 Answer

Profile image of Vikas TU
9 Years ago
Dear Student,
Let, A=5i+2j
|A|=52
=>√(5^2+2^2+2X5X2cos) = 52
=>cos=133.75 which is not possible as cos value can range from -1 to 1. Hence the value of magnitude should be something different.
Let, A=5i+2j
|A|=52
=>√(5^2+2^2+2X5X2cos) = 52
=>cos=133.75 which is not possible as cos value can range from -1 to 1. Hence the value of magnitude should be something different.
Here  is the thetha or angle.
Cheers!!
Regards,
Vikas (B. Tech. 4th year
Thapar University)

Other Related Questions on wave motion

question mark
A particle on a speing executes shm when the particle is found at x=xmax/2 the speed of the partcle is 
A)vx=vmax 
B)vx=√3vmax/2
C)vx=√2vmax/2
D)vx=vmax/2
wave motion
1 Answer Available

Last Activity: 4 Years ago

question mark
displacement associated with three dimensional wave is given by sai x y is equal to 1 + 1 by 2 x + root 3 by 2 k x minus omega t show that the wave propagates along a direction making an angle 60 degree with the x-axis
wave motion
1 Answer Available

Last Activity: 4 Years ago

question mark
What do you mean by Energy of Simple Hormonic Motion?
 
wave motion
1 Answer Available

Last Activity: 4 Years ago

question mark
What is mean by motion and time define it's all types with there parts and their s.i. units.
wave motion
1 Answer Available

Last Activity: 4 Years ago

question mark
explain the effects of doppler effect in satellite communication
wave motion
1 Answer Available

Last Activity: 4 Years ago