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A forc of 7hati + 6hatk newton makes a b...

A forc of `7hati + 6hatk` newton makes a body move on a rough plane with a velocity of `3 hatj +4 hatk ms^(-1)`. Calculate the power in watt.

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A force of 7 hati+ 6 hatk newton makes a body move on a rough plane with a velocity of 3 hatj + 4 hatk ms^-1 . Calculate the power in watt.

A force of 6 hat i+ 7 hat j newton makes a body move on a rough loane with a velocity of (4 hat j = 3 hat k) ms^(-1) . Calculate the power in watt.

A force of (5hati+6hatj) N makes a body to move on a rough surface with a velocity of (4hatj-2hatk) m/s. What is the power?

Under a force of 10 hati - 3 hatj +6 hatk newton, a body of mass 5 kg is displaced from the position 6 hati + 5 hatj - 3 hatk to the position 10 hati - 2hatj + 7 hatk . Calculate the work done.

A force of 2 hati + 3 hatj + 4 hatk N acts on a body for 4 second and producesa displacement of (3 hati + 4 hatj + 5 hatk)m . The power used is

A force (4hati+hatj-2hatk) N acting on a body maintains its velocity at (2hati+2hatj+3hatk) m s^(-1) . The power exerted is

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  5. If |vec(A)+vec(B)| = |vec(A)-vec(B)|, find the angle between vec(A) an...

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  8. If hati and hatj are unit vectors along X-and Y-axis respective, then ...

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  11. If vec(A) +vec(B) = vec(C) and A^(2) +B^(2) = C^(2), then prove that v...

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  12. Calculate the area of the parallelogram whose two adjacent sides are f...

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  13. If vec(A) and vec(B) denpte the sides of a parallelogram and its area ...

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  14. Determine a unit vecor perpendicular to both vec(A) = 2 hati +hatj +ha...

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  15. Find a vector whose length is 7 and which is perpendicular to each of ...

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  16. Determine the sine of the angle between the vectors 3 hati +hatj +2hat...

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  17. Show that (vec(A) - vec(B)) xx (vec(A) +vec(B)) = 2(vec(A) xx vec(B))

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