A motorboat travels 2.0 km at north of east in 10 min

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A motorboat travels 2.0 km at

30^{\circ}

north of east in 10 min, then 1.5 km due east in 5.0 min. What is the eastward component of the boat’s average velocity for the entire trip? (a)

14\;\text{km/h}

(b)

13\;\text{km/h}

(c)

10\;\text{km/h}

(d)

21\;\text{km/h}