sherrieasbury19
contestada

please help don't for get to show work

Bob walks 32m south turns and runs for 45m east. How much distance did he cover?

 
What is Bob's displacement?

Respuesta :

AL2006
-- Bob covered a distance of (32m + 45m) = 77 meters.

-- His displacement is the straight-line distance and direction
from his starting point to his ending point.

The straight-line distance is

D = √(32² + 45²)
D = √(1,024 + 2,025)
D = √3,049 = 55.22 meters

The direction is the angle whose tangent is (32/45) south of east.

tan⁻¹(32/45) = tan⁻¹(0.7111...) = 35.42° south of east.

Otras preguntas