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For what value of .ϕ. is work done maximum?
- a)900
- b)00
- c)600
- d)450
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
For what value of .ϕ. is work done maximum?a)900b)00c)600d)450Cor...
Work done when a body moves at an angle to the direction of force is W=Fcosϕ×s. The value of Cos is maximum for 00. So, work done will be maximum for this angel.
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For what value of .ϕ. is work done maximum?a)900b)00c)600d)450Cor...
Work done is given by the formula W = F * d * cosθ, where W is the work done, F is the force applied, d is the displacement, and θ is the angle between the force and displacement vectors.
In this case, the force and displacement vectors are given by F = 100 N and d = 10 m. The angle θ is not given, so we need to find the value of θ that maximizes the work done.
To find the maximum value of cosθ, we need to find the minimum value of θ. The minimum value of θ occurs when cosθ is maximum, which is 1. Therefore, we can set θ = 0°.
Now, we can calculate the work done using the formula W = F * d * cosθ:
W = 100 N * 10 m * cos(0°)
W = 100 N * 10 m * 1
W = 1000 N * m
From the given options, the maximum value of work done is 1000 N * m, which corresponds to option B.
In this case, the force and displacement vectors are given by F = 100 N and d = 10 m. The angle θ is not given, so we need to find the value of θ that maximizes the work done.
To find the maximum value of cosθ, we need to find the minimum value of θ. The minimum value of θ occurs when cosθ is maximum, which is 1. Therefore, we can set θ = 0°.
Now, we can calculate the work done using the formula W = F * d * cosθ:
W = 100 N * 10 m * cos(0°)
W = 100 N * 10 m * 1
W = 1000 N * m
From the given options, the maximum value of work done is 1000 N * m, which corresponds to option B.
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For what value of .ϕ. is work done maximum?a)900b)00c)600d)450Cor...
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For what value of .ϕ. is work done maximum?a)900b)00c)600d)450Correct answer is option 'B'. Can you explain this answer? for Class 9 2025 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about For what value of .ϕ. is work done maximum?a)900b)00c)600d)450Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 9 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For what value of .ϕ. is work done maximum?a)900b)00c)600d)450Correct answer is option 'B'. Can you explain this answer?.
For what value of .ϕ. is work done maximum?a)900b)00c)600d)450Correct answer is option 'B'. Can you explain this answer? for Class 9 2025 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about For what value of .ϕ. is work done maximum?a)900b)00c)600d)450Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 9 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For what value of .ϕ. is work done maximum?a)900b)00c)600d)450Correct answer is option 'B'. Can you explain this answer?.
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