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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
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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