The velocity of an airplane in a strong wind is 150 m/s. Which of the following explanations is correct? 1) The wind is blowing at 10 m/s. The airplane is flying against the wind at 140 m/s. 2) The wind is blowing at 20 m/s. The airplane is flying with the wind at 130 m/s. 3) The wind is blowing at 50 m/s. The airplane is flying against the wind at 100 m/s. 4) The wind is blowing at 200 m/s. The airplane is flying with the wind at 50 m/s.

A sailboat sails from Marblehead Harbor directly east for 45 nautical miles, then 60 degree south of east for 20 nautical miles, returns to an easterly heading for 30 nautical miles, and sails 30 degreeeast of north for 10 nautical miles, then west for 62 nautical miles. At that time the boat becomes becalmed and the auxiliary engine fails to start. The crew decides to notify the Coast Guard of their position. What is their position?

An F-106 is flying from Minneapolis, Minnesota, to Charleston, South Carolina, a distance of 1400 n miles. The pilot reads an indicated airspeed of 300 kn at a pressure altitude of 50,000 ft MSL. If position error is negligible, what is the aircraft's true airspeed? If it is flying in a 50-kn tailwind, what is the plane's ground speed, and how long will the 1400-n mile flight take?

David is buying a jet boat this summer and spending a lot of time zooming around. One place he plans on going is to the Plate River above Albany, NY. The current is 4 m/s south and the river is 200m wide. the boat will move at 20 m/s at full throttle, his only setting.  A. how quickly will he cross the river if he heads straight across?B. how far downstream will he end up if he does so?C. if he wants to go straight across, what angle upstream should he use?

A jet airliner moving at 474 mph due east moves into a region where the wind is blowing at 326 mph in a direction 460 north of west. What is the new velocity of the aircraft?

An airplane needs to head due north, but there is a wind blowing from the northwest at 40 km/hr. The plane flies at an airspeed of 800 km/hr, To end up due north, the pilot will need to fly the plane north degrees west of

The driver of a motorboat that can move at 12 m/s in still water wishes to travel directly across a narrow strait in which the current flows at 8 m/s. At what angle upstream should the driver head the boat? a) 63.3° b) 27.8° c) 48.1° d) 41.8°

A rifle that shoots bullets at 474 m/s is to be aimed at a target 46.1 m away. If the center of the target is level with the rifle, how high above the target must the rifle barrel be pointed so that the bullet hits dead center? Number i Units

You are diving board over a swimming pool. You are throwing upward a tennis ball at a speed 3 m/s. On its way back down the tennis ball narrowly misses the diving and hits the water below at 15 m/s. The board is about

A fighter plane moving 233 m/s horizontally fires a projectile with speed 59 m/s in a forward direction 30.0° below the horizontal. What is the speed of the projectile with respect to a stationary observer on the ground? a) 249 m/s Ob) 2660 m/s c) 288 m/s d) 286 m/s