Question

A ship is travelling due east at 10 km/h. A ship heading 30° east of north is always due north from the first
ship. The speed of the second ship in km/h is -​

Answer 1

Answer:

20

Explanation:

Two components is v

1

in north and v

2

in east as original speed at 30°⟶east of north.

So, perpendicular to it, zero velocity.

v

1

sin30°=v

2

sin60°−−−−−−(i)

Also, v

2

=10

Then, x=

sin30°

10

=

(

2

1

)

10

=20km/h

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