A=magnitude=5m direction along x-axis. B=magnitude=8m direction 65° from positive x-axis. Use the polygon method of vector addition to determine the magnitude and direction
Answers
Answered by
1
Answer:
point B is at, 8* cos 65 i +8*sin65 j
point A is at 5i
Attachments:
Answered by
0
magnitude of resultant is 11.408 and tan-¹(0.8231) angle made with X - axis.
given, |A| = 5m direction along x - axis
in vector form ⇒ A = 5 i
|B| = 8m direction 65° from positive x - axis.
in vector form ⇒B = 8(cos65° i + sin65° j)
= 8 × (0.4226) i + 8 × (0.9063) j
= 3.3808 i + 7.2504 j
from vector addition, R = A + B [see figure ]
= 5i + 3.808 i + 7.2504 j
= 8.808 i + 7.2504 j
magnitude of R = √{(8.808)² + (7.2504)²}
= 11.408
direction of R = tan-¹(7.2504/8.808) = tan-¹(0.8231) with x- axis.
Attachments:
Similar questions