If A = 2 and B = 4, then match the relations in column I with the angle θ between A B and in column II. Column I Column II °

If A = 2 and B = 4, then match the relations in column I with the angle θ between A B and in column II. Column I Column II °

-
1 Answer
-
This is a Short Answer Type Question as classified in NCERT Exemplar
Explanation- given |A|=2 and |B|=4
a)|A |=AB sin = 0
so 2 sin =0
so so it matches with iv
B) |A B|= ABsin =8
2 sin =8
So = 90 so it matches with option iii
c) |A B|= ABsin =4
so =30 so it matches with option i
d) |A B|= ABsin =4
so =45 so it matches with option ii
Similar Questions for you
Please find the solution below:
after 10 kicks,
v? = 3tî v? = 24cos 60°î + 24sin 60°? = 12î + 12√3?
v? = v? – v? = (12 – 3t)î + 12√3?
It is minimum when 12 - 3t = 0 ⇒ t = 4sec
ω = θ² + 2θ
α = (ωdω)/dθ = (θ² + 2θ) (2θ + 2)
At θ = 1rad.
ω = 3rad/s and α = 12rad/s²
a? = αR = 12 m/s² a? = ω²R = 9 m/s² A? = √ (a? ² + a? ²) = 15 m/s²
a? = v? ²/4r
a_A? = (v? ²/r²) × r = v? ²/r
a_A = 3v? ²/4r
Taking an Exam? Selecting a College?
Get authentic answers from experts, students and alumni that you won't find anywhere else
Sign Up on ShikshaOn Shiksha, get access to
- 65k Colleges
- 1.2k Exams
- 688k Reviews
- 1800k Answers