- Downstream/Upstream:In water, the direction along the stream is called downstream. And, the direction against the stream is called upstream.
- If the speed of a boat in still water is u km/hr and the speed of the stream is v km/hr, then:Speed downstream = (u + v) km/hr.Speed upstream = (u - v) km/hr.
- If the speed downstream is a km/hr and the speed upstream is b km/hr, then:
Speed in still water = 1 (a + b) km/hr. 2 Rate of stream = 1 (a - b) km/hr. 2
Sunday, October 1, 2017
Boats and Streams - Important Formulas |
Subscribe to:
Post Comments (Atom)
Home
Practices Test for all subject UPSC Civil Services (IAS...
-
Decimal Fractions: Fractions in which denominators are powers of 10 are known as decimal fractions . Thus, 1 = 1 tenth = .1; 1 = 1 ...
-
Direct Proportion: Two quantities are said to be directly proportional, if on the increase (or decrease) of the one, the other increases (or...
-
Minute Spaces: The face or dial of watch is a circle whose circumference is divided into 60 equal parts, called minute spaces. Hour Hand and...
No comments:
Post a Comment