Posted by **Jake** on Monday, March 19, 2012 at 9:38pm.

Bob can swim at a rate of 5km/h. He is in a river that is flowing at a rate of 9 km/h.

a) if bob swims upstream, what is his relative velocity to the ground?

b)if bob swims downstream, what is his relative velocity to the ground?

c) Someone decides to help Bob out of the water with a rope. bob swims across the river (perpendicular to the flow of water) in the same direction he's being pulled. The rescuer is pulling at a rate of 3 km/h. What is Bob's relative velocity to the ground?

## Answer This Question

## Related Questions

- Math - Bob can swim at a rate of 5km/h. He is in a river that is flowing at a ...
- Calculus and vectors - Bob can swim at a rate of 5km/h. He is in a river that is...
- physics - You want to swim straight across a river that is 76m wide. You find ...
- Mechanics M1 - A girl swims across a river. When she swims in still water, she ...
- physics - Noah wants to swim across a river 10 m wide, flowing from north to ...
- physics - Noah wants to swim across a river 10 m wide, flowing from north to ...
- physics - A River Is Flowing at a velocity of 0.15 m/s west. a swimmer swims ...
- math - A man who can swim at 5km/h in still water swims towards the east to ...
- science(physics) - The stream of a river is flowing with velocity 1 km/h.What ...
- Physics - A student swims at 4m/s. She is swimming from west to east across a ...

More Related Questions