Question

0.8
Following forces start acting on a particle at rest
at the origin of the co-ordinate system
simultaneously
Ē= - 4i-5j+5k
Ē=5i+8j+6k
Ē= - 3i+4j-7k
E = 21-3j-2k
then the particle will move -
(A) In x - y plane (B) In y - z plane
(C) In x - z plane (D) Along X-axis​

Answer 1

Answer:

Particle will move in y - z plane

Explanation:

Following forces start acting on a particle at rest

at the origin of the co-ordinate system

simultaneously

Ē= - 4i-5j+5k

Ē= 5i+8j+6k

Ē= - 3i+4j-7k

E = 2i-3j-2k

Resultant = - 4i-5j+5k  + 5i+8j+6k  - 3i+4j-7k  + 2i-3j-2k

= 0i + 4j  +2k

= 4j  +2k

i - x plane

j  - y plane

k - z plane

Particle will move in y - z plane

Answer 2

Answer:

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Explanation:

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