Question

Pre-Medical : Physics
ALLEN
BEGINNER'S BOX-10
(a) x and y components
The x and y components of vector à are am and om respectively. The x and y components of vector
A + B are 10m and Im respectively. For the vector B calculate the following -
(b) length and (c) the angle it makes with x-axis
Find the directional cosines of vector (5ỉ + 2ị + 6k). Also write the value of sum of squares of directional cosines
of this vector.
If A = 6î - 6j + 5k and B={+ 2j - k, then find a unit vector parallel to the resultant of Ā & B
MULTIPLICATION AND DIVISION OF A VECTOR BY A SCALAR
If there is a vector Ā and a scalar K and if B = KĀ and C =
A
where K> 0 then
K
(a) In multiplication of a vector by a scalar the magnitude becomes K times while the direction remains same.
So that angle between A and B is zero.
(b) In division of a vector by a scalar,the magnitude becomes (1/K) times and the direction remains same. S
that angle between A and Ĉ is zero.​

Answer 1

hey there

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Answer 2

Explanation:

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