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A fly is sitting in the middle of a wall of a cubic room of side ’a’.If it flies and sit to one of opposite corner of the wall. Find its displacement?
streess is tensor,then,what is meant by tensor?
Tensors are used to represent the relation between vectors. They are geometrical objects which show’s the relation between vectors, vectors and scalars.It is a geometrical maping of the relations .Tensor analysis ,a branch in mathematics is helping to solve the complex equations in which many vectors are involved
for further reference visit http://www.grc.nasa.gov/WWW/k-12/Numbers/Math/documents/Tensors_TM2002211716.pdf
- A jetliner moving at 500. km/h due east moves into a region where the wind is blowing from exactly NW toward the SE at a speed of 127 km/h. What is the new velocity of the airplane? you must include both magnitude and direction in your answer.
- The speed of a train changes from36km/h to 72km/h in 10sec. calculate the distance travelled during this time
“How to solve rain and man problems from motion in one dimension?”
The problem is solved using principles of vector addition.
There is a simple logic to remember
A/C = A/B x B/C
If we represent diagrammatically (in the form of vectors) the velocity of rain wrt ground, velocity of man wrt ground and velocity of rain wrt man, then we can write
Vr/m = V r/g + Vg/m = V r/g – Vm/g = V r/g + (- Vm/g)
Where (- Vm/g) is the negative vector of Vg/m
I will be adding illustrations soon.