Question

A cat is situated at point A(10, 6,-4) and rat is at point B(5, 6,8) cat is free to move but rat is always at rest. Find minimum distance travelled by cat to catch the rat? ​

Answer 1

Answer:

Explanation:

The minimum distance

= The magnitude of displacement of cat =|rB−rA|

Here rB=5iˆ−8kˆ,rA=3iˆ+4kˆ

∴s=rB−rA=5iˆ−3jˆ−12kˆ

∴|s|=√ (5)2+(−3)2+(−12)2

=√ 25+9+144

=13.34≈13 unit

hope it helps!