What angle does the raindrop velocity vector make with

Reference no: EM13562700

An excursion train, travelling at 80ft/s, encounters a rain shower. The point A lies directly 8ft. beneath the lip of an overhang in the observation car. The raindrops can be assumed to be falling at a constant speed of 40ft/s. Under the current conditions, a raindrop just clearing the lip would strike the observation car's floor 16ft from the point A. At what constant rate would the train need to be decelerating ( deceleration starting just as the drop passes the lip) for the drop to hit the floor 8ft. from A? What angle does the raindrop's velocity vector make with respect to the floor at the time of impact, as seen by an observer on the train?

Reference no: EM13562700

Questions Cloud

Estimate the time of concentration for each configuration : A large shopping mall parking lot may be arranged in either of the two configurations shown in figure P-4-13. The drain commissioner prefers the longest time of concentration to allow for the passage

How far apart are the towers : Two towers A and B are located on flat ground and their bases have equal elevations above sea level. A person on tower A whose eye level is 26.0 feet above the ground can just see the top of tower B, which is 105 feet above the ground. How far apart ..

What is the maximum horizontal angular error introduced : When you sighted the to the opposite end of the base line for the inaccessible point lab exercise, the target you used was 0.04 feet (about ½ inch) from the center of the station sighted.

Determine the number of rollers required to provide : Earth--- whose in situ weight is 112 lb/cf, whose loose weight is 95 lb/cf, and whose compacted weight is 120 lb/cf--- is placed in a fill the rate of 250 cy/hr

What angle does the raindrop velocity vector make with : An excursion train, travelling at 80ft/s, encounters a rain shower. The point A lies directly 8ft. beneath the lip of an overhang in the observation car.

Determine the amount of air that must be bled off : The pressure in an automobile tire depends on the temperature of the air in the tire. When the air temperature is 25°C, the pressure gage reads 210 kPa. If the volume of the tire is 0.025 m3, determine the pressure rise in the tire when the air tempe..

What is the tracks radius of curvature at this instant : A race car C is being tracked via telemetry. The on-board acclerometer records and acceleration level of -.7get+.5gen. If you know that the v at this instant is 200km/hr, what is the tracks radius of curvature at this instant?

What pressure in psi must be applied to water : A researcher is conducting an evaporation study using a 5ft diameter evapoartion pan with 75lbs of water. Over the course of 3days, she added another 6lbs of water and at the end of 3days, there was 67lbs of water remaining. A nearby rain gage record..

Express these components fp and fn : The force F=10i+12j-6k(N). (a) Determine the magnitude of the projected components of F acting parallel Fp and normal Fn to line OA. (b) Express these components Fp and Fn in Cartesian vector notation.

User Account

All Pages