1800-150-456-789
FlagBACK
Flag General Physics> Findthe resultant of two vectors of magni...
question mark

Findthe resultant of two vectors of magnitude 5&3and making angle 60degree between them? Give the solution by using both triangle law and parallelogram law of vector addition. In my book its clearly given that R= P+Q = √P²+Q²+2PQcos∅. But on adding the two vectors answer comes out as 8. USing this formula √P²+Q²+2PQcos∅ answer comes out to be 7. Explain

Ali Hasan , 9 Years ago
Grade 11
anser 6 Answers
VISHNUPRIYA K

Last Activity: 9 Years ago

R=

mohit yadav

Last Activity: 9 Years ago

ans is 7 only …...you are adding vectors at an angle of 60 degree so you cannot directly add them
 

mohit yadav

Last Activity: 9 Years ago

ans is 7 only …...you are adding vectors at an angle of 60 degree so you cannot directly add them
 

Ali Hasan

Last Activity: 9 Years ago

CAn you please explain what triangle law actually is. TO me its just addition of two vectors in consecutive order to find the resultant

shubham sharda

Last Activity: 9 Years ago

The resultant would be of 7 magnitude.

suman gupta

Last Activity: 9 Years ago

ans should be7 because we cant add or subtracte a vector directly.and by using this formula u can add it and formula is (A)+(B)+2ABCOS60.
                                                            THANK U........

Provide a better Answer & Earn Cool Goodies

Enter text here...
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Enter text here...

Other Related Questions on general physics

question mark
moment of inertia of a equilateral triangle about an axis passing through centre and perppendicular to the plane
general physics
1 Answer Available

Last Activity: 2 Years ago

question mark
. Because of the rotation of the earth, a plumb bob may not hang exactly along the direction ofthe earth’s gravitational pull (its weight) but deviates slightly from this direction. Calculate thedeviation (a) at 40 latitude, (b) at the poles, and (c) at the equator
general physics
1 Answer Available

Last Activity: 2 Years ago

question mark
The length of a massless rod is measured using vernier callipers having 10 vernier scale divisions and least count of 0.1 mm. Two masses 1.00 ± 0.01 kg and 4.00 ± 0.02 kg are attached to its ends. If reading of vernier scale is 5 divisions coinciding with 1.3 cm, what is the % error in locating centre of mass from lighter mass
general physics
2 Answers Available

Last Activity: 2 Years ago

question mark
A block is kept on x-y plane at a point (2m,3m). It is pushed with a force of magnitude 10 Ntowards point (5m,7m). The force can be represented as?
general physics
0 Answer Available

Last Activity: 2 Years ago

question mark
The phase of particle at t is 70°and another particle is at t is 790° what is wavelength if the distance between two particles is1 m
general physics
0 Answer Available

Last Activity: 2 Years ago