36. Three forces act on a particle. Given that the fe rces are (4i- j) N . (2i +4j) N , and (-3i- 2j)N, th:e uilibrany to these forces is: (A) (3i+ j)N (B] (-3i + j)N |C) (3i-j)N (D] (-31- j)N
36. Three forces act on a particle. Given that the fe rces are (4i- j) N . (2i +4j) N , and (-3i- 2j)N, th:e uilibrany to these forces is: (A) (3i+ j)N (B] (-3i + j)N |C) (3i-j)N (D] (-31- j)N
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Answer 36, 37
![36.
Three forces act on a particle. Given that the fe rces are
(4i -j)N.(2i+4j)N, and (-3i- 2j)N.the e juilibrant to
[D]
these forces is:
41.
A particle is projected with speed 20ms. Given that g is
the acceleration due to gravity, the maximum range it can
attain is
[A] (3i+j)N
[B] (-3i+j)N
(C] (3i-j)N
[D] (-3i- j)N
400
I시
(B] 400g m
20
In the force diagram in figure 2 below, the syst :m of forces
are in equilibrium.
37.
(C)
[D] 20g m
A force of magnitude 30 N is applied to an elastic material
ofnatural.length.3m,giving an extension of 2m. The.
modulus of elasticity is:
[A] 20 N
(B] 45 N
(C) -90N-
[Dj
42.
-T
Figure 2
12 N
he positiouareloir:ol a prutiele mtime i seconds is
given by r=P-21)i+(1• 3)jm
The velocity of the particle w Inen 1 =1 is:
[A] (i-4j)ms
The force T. in terms of IW is:
[A]
311
(B] 33r
(C) 6IV
[DI V3w
[B] (i+6j)ms
(C] (-i-4j)ms
(D (i-6j) ms](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe4957fe4-4c01-40d3-938e-f3efa5fe6d1c%2Fd4a6d950-0ff0-4486-8dbc-6e433884f487%2Fwkvwhai_processed.jpeg&w=3840&q=75)
Transcribed Image Text:36.
Three forces act on a particle. Given that the fe rces are
(4i -j)N.(2i+4j)N, and (-3i- 2j)N.the e juilibrant to
[D]
these forces is:
41.
A particle is projected with speed 20ms. Given that g is
the acceleration due to gravity, the maximum range it can
attain is
[A] (3i+j)N
[B] (-3i+j)N
(C] (3i-j)N
[D] (-3i- j)N
400
I시
(B] 400g m
20
In the force diagram in figure 2 below, the syst :m of forces
are in equilibrium.
37.
(C)
[D] 20g m
A force of magnitude 30 N is applied to an elastic material
ofnatural.length.3m,giving an extension of 2m. The.
modulus of elasticity is:
[A] 20 N
(B] 45 N
(C) -90N-
[Dj
42.
-T
Figure 2
12 N
he positiouareloir:ol a prutiele mtime i seconds is
given by r=P-21)i+(1• 3)jm
The velocity of the particle w Inen 1 =1 is:
[A] (i-4j)ms
The force T. in terms of IW is:
[A]
311
(B] 33r
(C) 6IV
[DI V3w
[B] (i+6j)ms
(C] (-i-4j)ms
(D (i-6j) ms
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