4. A swimmer is trying to get across the English Channel. She starts off swimming at 1.75 m/s [W 20° N] and ends up swimming at 2 m/s [N]. What is the change in velocity due to the current?

Problem 1.A boat traveling east covers a distance of 40.0 m in 20.0 s. It encounters a current moving at a speed of 2.50 m/s traveling north. Find the resultant velocity of the boat. 2.A riverboat travels with a velocity of 4.60 m/s from one shore to another. The velocity of the river is 2.30 m/s. If the width of the river is 72.0 m, how far does the boat travel downstream to reach the other shore? 3. A bus travels from west to east with a velocity of 11.5 m/s. A marble rolls on the surface of the bus floor with a velocity of 0.200 m/s north. What is the velocity of the marble relative to the road? 4. A human cannonball is launched from a cannon at 20 m/s at 45° above the horizontal. What is the maximum height of the human cannonball? 5. A human cannonball is launched from a cannon at 20 m/s at 45° above the horizontal. What is the range of the human cannonball? 6. A football is kicked from a tee at 12 m/s at 72° above the horizontal. What is the flight time of the football? 7. An…

There is one part to this question. I need to know the m/s. Thank you!

7. A student goes for a jog at an average speed of 3.5 m/s. Starting from home, he first runs 1.8 km [E] and then runs 2.6 km [N 35° E]. Then he heads directly home. How long will the entire trip take?

Two cars approach each other at an intersection. Car A is traveling south at 30 m/s, while car B is traveling 70 degrees north of east at 50 m/s. What is the speed (in m/s) of car A as seen by the driver of car B?

2. A boat can travel   7.3  m/s in still water.  It is crossing a   220   m wide river while pointed due east and the river is flowing at   3.7   m/s, north.   What is the speed of the boat, relative to the shore? How long does it take to cross the river? How far downstream does the boat end up?

A boat traveling moving at 21.00 m/s North is a river. The current in the river is moving west to east at 4.390 m/s. What is the relative velocity of the boat as it travels in the river? Select one: a. 16.61 m/s at 45.00 degrees b. 21.00 m/s at 90.00 degrees c. 21.45 m/s at 78.19 degrees d. 25.39 m/s at 34.00 degrees

6. A river is 85 meters wide, and has a current speed of 5.0 m/s. A swimmer is capable of swimming at 8.0 m/sin a pool.a) If the swimmer pointed directly across the river, how far downstream would they end up aftercrossing the river? b) If the swimmer wished to traverse directly across the river, what angle should they direct theirswim?

2. An airplane flying N30° W at 150 km/h encounters a wind blowing E5 N at 40 km/h. Determine the resultant ground velocity of the plane. Include a vector diagram in your solution.

6. If a river has a westward current of 2.30 m/s and you head due north across the river on a boat that has a speed of 3.5 m/s in still water, then what is speed of the boat relative to the shore? At what angle does it cross the river? Draw a picture and label the angle.