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Motion in Straight Line

River boat problem

A steamer moves with velocity 3 km/h in and against the direct

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A steamer moves with velocity 3 km/h in and against the direction of river water whose velocity is 2 km/h. Calculate the total time for the total journey if the boat travels 2 km in the direction of a stream and then back to its place:

Name: Video solution 1: A steamer moves with velocity 3 km/h in and against the direction of river water whose velocity is 2 km/h. Calculate the total time for the total journey if the boat travels 2 km in the direction of a stream and then back to its place:
Uploaded: 2022-09-25T13:21:16.000Z
Duration: 12 min
Description: Video solution 1: A steamer moves with velocity 3 km/h in and against the direction of river water whose velocity is 2 km/h. Calculate the total time for the total journey if the boat travels 2 km in the direction of a stream and then back to its place:

2 hrs

2.5 hrs

2.4 hrs

3 hrs.

Views: 5,481 students

Updated on: Sep 25, 2022

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A steamer moves with velocity 3 km/h in and against the direction of river water whose velocity is 2 km/h. Calculate the total time for the total journey if the boat travels 2 km in the direction of a stream and then back to its place:

7 mins ago

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Text solutionVerified

When the streamer go along the flow if speed is

3 km / h + 2 km / h = 5 km / h

Time taken to travel down stream is

t_{1} = \frac{distance}{effective speed}

∴ t_{1} = \frac{2 km}{5 km / h} = 0.4 h

When the streamer go against the flow it speed is

3 km / h - 2 km / h = 1 km / h

Time taken to travel upstream is

t_{3} = \frac{distance}{effective speed}

t_{2} = \frac{2 km}{1 km / h} = 2 h

Total time

= 2 + 0.4 = 2.4 h

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13 mins

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Question Text	A steamer moves with velocity 3 km/h in and against the direction of river water whose velocity is 2 km/h. Calculate the total time for the total journey if the boat travels 2 km in the direction of a stream and then back to its place:
Updated On	Sep 25, 2022
Topic	Motion in Straight Line
Subject	Physics
Class	Class 11
Answer Type	Text solution:1 Video solution: 2
Upvotes	240
Avg. Video Duration	12 min

A steamer moves with velocity 3 km/h in and against the direction of river water whose velocity is 2 km/h. Calculate the total time for the total journey if the boat travels 2 km in the direction of a stream and then back to its place:

Text solutionVerified

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A steamer moves with velocity 3 km/h in and against the direction of river water whose velocity is 2 km/h. Calculate the total time for the total journey if the boat travels 2 km in the direction of a stream and then back to its place:

Text solutionVerified

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