Work done when a force of (7hat(i)-4hat(...

Work done when a force of `(7hat(i)-4hat(j)-4hat(k))` N moves a body through a distance of 10 metre in its own direction is

160 j

120 j

90 j

10 j

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TARGET PUBLICATION-SCALARS AND VECTORS-Critical Thinking

A Unit vector in the direction of the negative of the vector (-hat(i)+...
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If vec(A)=2hat(i)+6hat(j)and vec(B)=4hat(i)+3hat(j), the vector having...
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If the sum of two unit vectors is a unit vector, then magnitude of dif...
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A vector of magnitude b is rotated through angle theta. What is the ch...
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The resultant of two vectors vec(P) and vec(Q) is vec(R ). If the magn...
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A force vector applied on a mass is represented as vec(F)=6hat(i)-8hat...
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Vector vec(A)=2hat(i)-3hat(j)+ahat(k)andvec(B)=12hat(i)-bhat(j)+6hat(k...
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If a 4hat(i)+3hat(j)+8hat(k) is perpendicular to the vector 4hat(j)-4h...
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A force vec(F)=3hat(i)+chat(j) +2hat(k) acting on a particle causes a ...
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Work done when a force of (7hat(i)-4hat(j)-4hat(k)) N moves a body thr...
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If vec(P)=hat(i)-2hat(j)-3hat(k)and vec(Q)=4hat(i)-2hat(j)+6hat(k) , t...
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Choose the CORRECT statement.
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The sine of the angle between 3hat(i)+hat(j)+2hat(k)and 2hat(i)-2hat(j...
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If vec(A).vec(B)=0andvec(A)xxvec(B)=0, then which of the following con...
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If the ratio of the dot product of two vectors and cross product of sa...
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Select the WRONG one.
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If vec(a) and vec(b) are two vectors then the value of (vec(a) + vec(b...
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Given vec(p)*(vec(P)+vec(Q))=P^(2) then the angle between vec(P)andvec...
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Assertion : If dot product and cross product of vec(A)andvec(B) are ze...
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Assertion : vec(A)xxvec(B) is perpendicular to both vec(A)+vec(B) as w...
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