11th Class Physics MCQS Vectors and Equilibrium Online Test 3

angle-between-two-verctors-5-c-283-5-chat-7-bi-7-d-2-b-4-5-chat-7-bj-7-d-5-c-29-26-nbsp-3-band-26-nbsp-3-b-5-c-284-5-chat-7-bi-7-d-3-5-chat-7-bj-7-d-5-c-29-is-3-a_-_90-3-csup-3-eo-3-c-2-fsup-3-e,as-a-b-26-nbsp-3-b-3-d-26-nbsp-3-bb-a-hence-2-c-scalar-product-is-3-a_-_commutative,both-the-dot-product-and-cross-product-of-two-vectors-5-c-28-0-bec-7-ba-7-d-5-c-29-26-nbsp-3-band-5-c-28-0-bec-7-bb-7-d-5-c-29-26-nbsp-3-bis-zero-2-c-when-3-a_-_either-the-vector-is-zero,conventionally-2-c-clockwise-torque-is-taken-as-3-a_-_negative,dimension-of-moment-arm-is-3-a_-_5-bl-5-d,dot-product-of-two-non-zero-vectors-is-zero-28-5-c-28-0-bec-a-0-bec-b-3-d-0-5-c-29-29-when-angle-between-them-is-3-a_-_90-3-csup-3-eo-3-c-2-fsup-3-e,dot-product-of-two-non-zero-vectors-is-zero-if-angle-between-them-is-3-a_-_90-c-2-b-0,force-of-10-n-makes-an-angle-of-30-3-csup-3-eo-3-c-2-fsup-3-e-with-y-axis-2-c-its-x-component-will-be-3-a_-_5-n,forces-12-n-and-5-n-are-add-2-c-the-resultant-cannot-be-3-a_-_6-n,if-27-r-3-csub-3-ex-3-c-2-fsub-3-e-27-is-negative-and-rsub-26-gt-3-by-component-is-positive-2-c-the-direction-of-resultant-r-27-is_-_ce-b-8-3-d-0,if-5-c-28-0-bec-7-ba-7-d-3-d-2-5-cwidehat-7-bi-7-d-2-b-5-cwidehat-7-bj-7-d-2-b-2-5-cwidehat-7-bk-7-d-5-c-29-26-nbsp-3-bthen-5-c-28-5-cleft-7-c-a-0-dight-7-c-5-c-29-26-nbsp-3-bis-3-a_-_3,if-5-c-28-5-cleft-7-c-a-2-bb-0-dight-7-c-3-d-5-cleft-7-c-a-b-0-dight-7-c-5-c-29-26-nbsp-3-bthen-angle-between-26-nbsp-3-b-5-c-28-5-coverrightarrow-7-ba-7-d-5-c-29-26-nbsp-3-band-5-c-28-5-coverrightarrow-7-bb-7-d-5-c-29-26-nbsp-3-bis-3-a_-_90-3-csup-3-eo-3-c-2-fsup-3-e,if-5-c-28-5-coverrightarrow-7-ba-7-d-3-d-2-5-chat-7-bi-7-d-2-b-3-5-chat-7-bj-7-d-5-chat-7-bk-7-d-5-c-29-26-nbsp-3-band-26-nbsp-3-b-5-c-28-5-coverrightarrow-7-bb-7-d-3-d-4-5-chat-7-bi-7-d-2-b-6-5-chat-7-bj-7-d-2-5-chat-7-bk-7-d-5-c-29-26-nbsp-3-b-then-the-angle-between-them-will-be-3-a_-_0-3-csup-3-eo-3-c-2-fsup-3-e,if-5-c-28-5-coverrightarrow-7-ba-7-d-3-d-4-5-cwidehat-7-bi-7-d-5-c-29-26-nbsp-3-band-26-nbsp-3-b-5-c-28-5-coverrightarrow-7-bb-7-d-3-d-6-5-cwidehat-7-bj-7-d-5-c-29-26-nbsp-3-bthen-26-nbsp-3-b-5-c-28-5-coverrightarrow-7-ba-7-d-5-coverrightarrow-7-bb-7-d-5-c-29-26-nbsp-3-bwill-be-3-a_-_zero,if-5-c-28-5-coverrightarrow-7-ba-7-d-c-3-97-5-coverrightarrow-7-bb-7-d-3-d-0-2-c-5-c-29-26-nbsp-3-bthen-angle-between-the-vectors-is-3-a_-_0-3-csup-3-eo-3-c-2-fsup-3-e,if-5-c-28-5-coverrightarrow-7-bf-7-d-3-d-5-cleft-28-2-5-chat-7-bi-7-d-2-b-3-5-chat-7-bj-7-d-0-dight-29-n-5-c-29-26-nbsp-3-band-5-c-28-5-coverrightarrow-7-bd-7-d-3-d-5-cleft-284-5-chat-7-bi-7-d-2-b-4-5-chat-7-bj-7-d-0-dight-29-m-5-c-29-26-nbsp-3-bthen-the-work-done-will-be-3-a_-_20-j,if-a-3-csub-3-ex-3-c-2-fsub-3-e-and-a-3-csub-3-ey-3-c-2-fsub-3-e-both-are-negative-2-c-the-resultant-vector-will-lies-in-3-a_-_third-quadrant,if-a-force-of-10-n-is-acting-along-x-axis-then-its-component-along-y-axis-is-3-a_-_zero-n,if-a-vector-26-nbsp-3-b-5-c-28-5-coverrightarrow-7-ba-7-d-5-c-29-26-nbsp-3-bmakes-an-angle-0-3-csup-3-eo-3-c-2-fsup-3-e-with-x-axis-then-its-x-component-is-3-a_-_a,if-a-vector-a-makes-an-angle-ce-b-8-with-x-axis-2-c-its-x-component-is-given-by-3-b_-_acos-ce-b-8,when-line-of-action-of-applied-force-passes-through-the-axis-of-rotation-2-c-then-the-torque-is-3-a_-_zero