A boat is moving east at 50 km/ hr on a river that is going west at 7 km/hr. What is the velocity of the boat.
43ms-1 eh
To find the velocity of the boat, we need to consider the relative motion of the boat with respect to the river.
The boat is moving east at 50 km/hr, while the river is flowing west at 7 km/hr. When these two velocities are in opposite directions, we subtract the two velocities to find the resultant velocity.
So, the velocity of the boat (with respect to the ground) is given by:
Velocity of the boat = Velocity of the boat in still water - Velocity of the river
Velocity of the boat = 50 km/hr - 7 km/hr
Velocity of the boat = 43 km/hr (eastward)
Therefore, the velocity of the boat is 43 km/hr, moving eastward.