Click to Chat
1800-1023-196
+91-120-4616500
CART 0
Use Coupon: CART20 and get 20% off on all online Study Material
Welcome User
OR
LOGIN
Complete Your Registration (Step 2 of 2 )
If 0.5icap+o.8jcap+ckcap is a unit vector.Find the value of C.
DEAR NIMISH If
DEAR NIMISH
If
0.5icap+o.8jcap+ckcap is a unit vector then its magnitude should be 1. So the value of C is 0.33
111/2 check it it is 100% correct.
111/2
check it it is 100% correct.
Hello Nimish modulus of 0.5i+0.8j+C k= √(0.5)2 + (0.8)2 + C2 = √0.25+0.64+C2 = √0.89 + C2 But its a unit vector. therefore it''s magnitude should be equal to 1. √0.89+C2 = 1 squaring both sides, 0.89+C2= 1 C2= 1-0.89 = 0.11 C = 0.33 All the best!
Hello Nimish
modulus of 0.5i+0.8j+C k= √(0.5)2 + (0.8)2 + C2
= √0.25+0.64+C2
= √0.89 + C2
But its a unit vector. therefore it''s magnitude should be equal to 1.
√0.89+C2 = 1
squaring both sides,
0.89+C2= 1
C2= 1-0.89 = 0.11
C = 0.33
All the best!
Hey the answer was right but tell the way to solve it.
0.25+.64+c^2=1 then c=(11)^1\2
0.25+.64+c^2=1
then c=(11)^1\2
The formula is _/a^2+b^2+c^2 = Magnitude Put value in the above formula _/(0.5)^2+(0.8)^2+c^2=1By calculating we get -/0.11
Find solution of question on doubt solving app Instasolv
Post Question
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -