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The force required to row a boat at a constant speed is proportional to its speed.It takes 8KW to row the boat at 2.5 kmph.Then power required to row the same boat at 7.5 kmph is A)20KW. B)72KW C)720KW. D)7.2KW please explain and solve it?
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To solve this problem, we will use the concept of power and its relationship with force and speed. Power is defined as the rate at which work is done or energy is transferred. It is calculated by dividing the work done by the time taken.
1. Given Information:
- Force required to row a boat is proportional to its speed.
- It takes 8KW (kilowatts) to row the boat at 2.5 kmph (kilometers per hour).
2. Power and Speed Relationship:
The power required to row a boat is directly proportional to its speed. This means that if the speed of the boat is doubled, the power required will also double.
3. Calculating the Power at 2.5 kmph:
Let's assume the power required to row the boat at 2.5 kmph is P1.
We are given that P1 = 8KW and the speed is 2.5 kmph.
4. Calculating the Power at 7.5 kmph:
To find the power required to row the boat at 7.5 kmph (P2), we can use the relationship mentioned in step 2. As the speed has tripled, the power required will also triple.
P2 = 3 * P1
P2 = 3 * 8KW
P2 = 24KW
Therefore, the power required to row the boat at 7.5 kmph is 24KW.
5. Answer:
The correct answer is option A) 20KW.
Note: The given options in the question do not match with the calculated answer. The closest option to the calculated answer is option A) 20KW.
1. Given Information:
- Force required to row a boat is proportional to its speed.
- It takes 8KW (kilowatts) to row the boat at 2.5 kmph (kilometers per hour).
2. Power and Speed Relationship:
The power required to row a boat is directly proportional to its speed. This means that if the speed of the boat is doubled, the power required will also double.
3. Calculating the Power at 2.5 kmph:
Let's assume the power required to row the boat at 2.5 kmph is P1.
We are given that P1 = 8KW and the speed is 2.5 kmph.
4. Calculating the Power at 7.5 kmph:
To find the power required to row the boat at 7.5 kmph (P2), we can use the relationship mentioned in step 2. As the speed has tripled, the power required will also triple.
P2 = 3 * P1
P2 = 3 * 8KW
P2 = 24KW
Therefore, the power required to row the boat at 7.5 kmph is 24KW.
5. Answer:
The correct answer is option A) 20KW.
Note: The given options in the question do not match with the calculated answer. The closest option to the calculated answer is option A) 20KW.
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The force required to row a boat at a constant speed is proportional to its speed.It takes 8KW to row the boat at 2.5 kmph.Then power required to row the same boat at 7.5 kmph is A)20KW. B)72KW C)720KW. D)7.2KW please explain and solve it?
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The force required to row a boat at a constant speed is proportional to its speed.It takes 8KW to row the boat at 2.5 kmph.Then power required to row the same boat at 7.5 kmph is A)20KW. B)72KW C)720KW. D)7.2KW please explain and solve it? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about The force required to row a boat at a constant speed is proportional to its speed.It takes 8KW to row the boat at 2.5 kmph.Then power required to row the same boat at 7.5 kmph is A)20KW. B)72KW C)720KW. D)7.2KW please explain and solve it? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The force required to row a boat at a constant speed is proportional to its speed.It takes 8KW to row the boat at 2.5 kmph.Then power required to row the same boat at 7.5 kmph is A)20KW. B)72KW C)720KW. D)7.2KW please explain and solve it?.
The force required to row a boat at a constant speed is proportional to its speed.It takes 8KW to row the boat at 2.5 kmph.Then power required to row the same boat at 7.5 kmph is A)20KW. B)72KW C)720KW. D)7.2KW please explain and solve it? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about The force required to row a boat at a constant speed is proportional to its speed.It takes 8KW to row the boat at 2.5 kmph.Then power required to row the same boat at 7.5 kmph is A)20KW. B)72KW C)720KW. D)7.2KW please explain and solve it? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The force required to row a boat at a constant speed is proportional to its speed.It takes 8KW to row the boat at 2.5 kmph.Then power required to row the same boat at 7.5 kmph is A)20KW. B)72KW C)720KW. D)7.2KW please explain and solve it?.
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The force required to row a boat at a constant speed is proportional to its speed.It takes 8KW to row the boat at 2.5 kmph.Then power required to row the same boat at 7.5 kmph is A)20KW. B)72KW C)720KW. D)7.2KW please explain and solve it?, a detailed solution for The force required to row a boat at a constant speed is proportional to its speed.It takes 8KW to row the boat at 2.5 kmph.Then power required to row the same boat at 7.5 kmph is A)20KW. B)72KW C)720KW. D)7.2KW please explain and solve it? has been provided alongside types of The force required to row a boat at a constant speed is proportional to its speed.It takes 8KW to row the boat at 2.5 kmph.Then power required to row the same boat at 7.5 kmph is A)20KW. B)72KW C)720KW. D)7.2KW please explain and solve it? theory, EduRev gives you an
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