Question

A truck travelling due north at 20 m/s turns
west and travels at the same speed. The change
in its velocity now be?​

Answer 1

Answer:

Change in velocity

$= \sqrt{( {20})^{2} + ( {20})^{2} }$

$= 20 \sqrt{2} m {s}^{ - 1}$

along north-east or south-west.

Answer 2

Explanation:

as its said in the question that it travels towards north and then turns west so ....must be 90° is considered but actually no one can drive in such a manner ...but according to the rough diagram we have to find DEL V i:e

DEL V = [(V1) (V1) + (V2) (V2)]^ 1/2