A girl walks 20.0 m east then 70.0 meters north. What is the girl’s displacement (mag. And direction)? What is the girl’s distance?

Question

asked Jan 23, 2022 131k views

1 Answer

Datum Geek · Answer 1 · 2022-01-29T12:57:31+0000

Step-by-step explanation:

Given that,

A girl walks 20.0 m east then 70.0 meters north.

Displacement is the shortest path covered by an object. Let it is d. It is calculated as :

$d=√(20^2+70^2) \\\\=72.80\ m$

For direction,

$\theta=\tan^(-1)((70)/(20))\\\\\theta=74.05^(\circ)$

Girl's distance = 20 m + 70 m

= 90 m

Hence, this is the required solution.