Respuesta :
Answer:
By adding the vectors
Explanation:
It is given that, a river current has a velocity of 10 km/h relative to the shore, and a boat moves in the same direction as the current at 10 km/h relative to the river.
If we want to find the relative velocity of the boat with respect to the shore. It can be calculated by adding these two vectors.
Let velocity of river current, v₁ = 10 km/h
Velocity of boat, v₂ = 10 km/h
So, velocity of the boat relative to the shore will be :
v = v₁ + v₂
v = 20 km/h
Hence, the correct option is (d) "By adding the vectors".