Question

A car moves 40 m due east and turns towards north and moves 30 m then turns 45 0 east of north and moves 20m. Find the net displacement of car

Answer 1

Step-by-step explanation:

The net displacement required is AD BF=CE=20root2cos45=20m

AF=40+20=60m

ED=20root2sin45=20m

DF=DE+EF=20+30=50m

Using triangle ADF and Pythagoras's Theorem AD=rootAF2+DF2

=rost60∧2+50∧2

=78.10m

TanDAF=50/60=5/6

DAF=40 Degrees

90−40=50 degrees