What is the speed of the boat in still water 1 it takes 2 hours to cover the distance between A and B downstream II it takes 4 hours to cover the distance between A and B upstream?
It takes 2 hours to cover the distance between A and B downstream. It takes 4 hours to cover the distance between A and B upstream. if the data in Statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer to question.
What is the speed of the boat in still water if the boat covers a distance of 72 kms?
A boat travels 72 km downstream in 8 hours and 84 km upstream in 12 hours. Find the speed of the boat in still water and the speed of the water current ? speed of boat = (9+7)/2kmph = 8 kmph.
What is the speed of the boat in still water I the boat travels at the speed of 4 km/h upstream II the boat travels at the speed of 6 km/h downstream?
II. gives, speed of the boat in still water : = (1/2 x 12 ) km/hr = 6 km/hr.
How much time the boat took in downstream?
Example 3: A boat take 8 hours to cover a distance while traveling upstream, whereas while traveling downstream it takes 6 hours. If the speed of the current is 4 km/hr.
What is speed of current in boat and stream?
In one hour, a boat goes 11 km/hr along the stream and 5 km/hr against the stream. The speed of the boat in still water (in km/hr) is: A. (11 + 5) kmph = 8 kmph….Exercise :: Boats and Streams – General Questions.
| A. | 2 hours |
|---|---|
| B. | 3 hours |
| C. | 4 hours |
| D. | 5 hours |
How long will it take to row 20 km upstream if one can row 10 km in 10 minutes in still water?
Time requires to travel 20 km upstream is 26.67 min . One can row 10 km in 10 minutes in still water . The same distance in 8 minutes with the stream . Let , speed of stream be u and speed of boat is v . Therefore , for case 1 .
How do you calculate the speed of water?
Find the surface water velocity (in m/s) by dividing the distance from AA to BB (in this example, 10 m) by the average time (in seconds) and multiply this result by 0.85 (a correction factor) to estimate the average water velocity of the stream. Average water velocity = 0.5 m/s x 0.85 = 0.425 m/s.
What determines the speed of flow?
The speed is determined by timing how long it takes for an object to float from one point to another, along a measured stretch of stream; and then dividing the time it took by the distance the object traveled, to get a rate in meters per second (meters/second).
What is Young’s rule formula?
The definition of Young’s Rule is the age of the patient, divided by the age added to twelve, all multiplied by the recommended adult dose. This formula appears below: [Age / (Age + 12)] x Recommended Adult Dose = Pediatric Dose.
How do you calculate unit per hour?
So a 100-Watt bulb if kept on for 10 hours will consume: 100 x 10 = 1000 Watt-Hour = 1 Kilowatt-Hour (kWH) = 1 units (on your meter).
How many units is 1500 watts?
Energy consumed by an electric heater can be obtained with the help of the expression P= W/T. Hence, the energy consumed by the heater in 10 h is 15 kWh.