Question

help me in this question of vectors

Answer 1

hmm, displacement/time = average velocity is what your last question i helped out stated.

integration gives us the area under a curve, which is also a definition of displacement

Answer 2

\[2\int_{0}^{1}\sqrt{1-x^2}dx\] is my idea

Answer 3

i got this answer from a site but can not understand it

Answer 4

ok, thats using the standard definition of displacement

Answer 5

notice that from start to finish the thing is only displaced by 2 units, the negative is a direction .. downward

Answer 6

displacement / time = -2/1

Answer 7

but it is given only 1 m ? how are -2 m there ?

Answer 8

its a semicircle with a radius of 1m

the diameter of the circle measures 2m in a down direction, so -2m

Answer 9

oh yes thanks thanks thanks thanks thanks a lot :)))))))))))))))))))))))) gr8 help amsitre , i think u deserve the word SIR

Answer 10

i spose, its on all the letters i get from the collection agencies :)

Answer 11

nice