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A And B Are Two Vectors and R Is The Resultant. For What Angle Is IT Maximum For What Angle Is It Minimum


4 years ago

Manas Shukla
102 Points
							R is maximum when angle between them is 0 degrees since they just get added.R is minimum when vectors cancel out the effects of one anotherangle between them being 180 degrees

4 years ago
Piyush Kumar Behera
435 Points
							@Manas Shukla how can you say that at $\dpi{100} \theta$=180 they cancel out each other ,It is not given that both are equal ,so the term “cancel out each other” doesnot suit.However it can be say that the net resaultant is decreased due to opposing vectors.

4 years ago
Piyush Kumar Behera
435 Points
							Here is another solution: We know the expression for R=(A2+B2+2ABcos$\dpi{100} \theta$)½As A2 & B2 are positive and constant so the value of R will be Maximum when cos$\dpi{100} \theta$ is Maximum.Hence cos$\dpi{100} \theta$ is maximum at $\dpi{100} \theta$=0o so R is maximum at $\dpi{100} \theta$=0o.Similarly cos$\dpi{100} \theta$ is minimum at $\dpi{100} \theta$=180o so R is minimum at $\dpi{100} \theta$=180o.If you are helped by my solution then please approve the solution to encourage me.

4 years ago
39 Points
							for angle to be maximum cos$\varnothing$ should be maximum so as we know cos$\varnothing$ is maximum at 0 degree cos$\o$ is minimum at 180 degree

4 years ago
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### Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions