Question

answer this..... please ..aur Sahi answer kro yrr
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Answer 1

Answer:

14. Multiplication of vectors by a real number (scalar) is quite an easy concept.

in general form B = n. A (which is different from scalar product of two vectors)

Now,

Let us say that we have a vector A and we want to multiply it by a real number, say 10. The resultant would be a vector B and would be written as

B = 10.A

If A = 51 -j +3k

then

B = 10. (51 -j +3k)

or B 50i - 10j +30k

15. The Horizontal Range of a Projectile is defined as the horizontal displacement of a projectile when the displacement of the projectile in the y-direction is zero. This video explains how to use the equation, why a launch angle of 45° gives the maximum range and why complementary angles give the same range.

Hope it helps you!! Thank u