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An electricfan has blades of length 30cm measured from the axis of rotation. If the fan is rotating at 120 rpm, the acceleration of a point on the tip of the blade is [1990]
- a)1600 ms–2
- b)47.4 ms–2
- c)23.7 ms–2
- d)50.55 ms–2
Correct answer is option 'B'. Can you explain this answer?
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An electricfan has blades of length 30cm measured from the axis of rot...
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-2
b) 2400 ms
-2
c) 3200 ms
-2
d) 4000 ms
-2
We can use the formula for centripetal acceleration:
a = rω^2
where a is the acceleration, r is the radius (i.e. length of the blade), and ω is the angular velocity (in radians per second).
First, we need to convert the given rpm to radians per second:
ω = (120 rpm) * (2π/60) = 4π rad/s
Now we can plug in the values:
a = (0.3 m) * (4π rad/s)^2 = 3.77 m/s^2
Multiplying by 100 to convert to centimeters and rounding to the nearest whole number, we get:
a ≈ 377 cm/s^2 ≈ 3800 ms^-2
So the closest option is (d) 4000 ms^-2.
b) 2400 ms
-2
c) 3200 ms
-2
d) 4000 ms
-2
We can use the formula for centripetal acceleration:
a = rω^2
where a is the acceleration, r is the radius (i.e. length of the blade), and ω is the angular velocity (in radians per second).
First, we need to convert the given rpm to radians per second:
ω = (120 rpm) * (2π/60) = 4π rad/s
Now we can plug in the values:
a = (0.3 m) * (4π rad/s)^2 = 3.77 m/s^2
Multiplying by 100 to convert to centimeters and rounding to the nearest whole number, we get:
a ≈ 377 cm/s^2 ≈ 3800 ms^-2
So the closest option is (d) 4000 ms^-2.
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An electricfan has blades of length 30cm measured from the axis of rotation. If the fan is rotating at 120 rpm, the acceleration of a point on the tip of the blade is [1990]a)1600 ms–2b)47.4 ms–2c)23.7 ms–2d)50.55 ms–2Correct answer is option 'B'. Can you explain this answer?
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An electricfan has blades of length 30cm measured from the axis of rotation. If the fan is rotating at 120 rpm, the acceleration of a point on the tip of the blade is [1990]a)1600 ms–2b)47.4 ms–2c)23.7 ms–2d)50.55 ms–2Correct answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about An electricfan has blades of length 30cm measured from the axis of rotation. If the fan is rotating at 120 rpm, the acceleration of a point on the tip of the blade is [1990]a)1600 ms–2b)47.4 ms–2c)23.7 ms–2d)50.55 ms–2Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An electricfan has blades of length 30cm measured from the axis of rotation. If the fan is rotating at 120 rpm, the acceleration of a point on the tip of the blade is [1990]a)1600 ms–2b)47.4 ms–2c)23.7 ms–2d)50.55 ms–2Correct answer is option 'B'. Can you explain this answer?.
An electricfan has blades of length 30cm measured from the axis of rotation. If the fan is rotating at 120 rpm, the acceleration of a point on the tip of the blade is [1990]a)1600 ms–2b)47.4 ms–2c)23.7 ms–2d)50.55 ms–2Correct answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about An electricfan has blades of length 30cm measured from the axis of rotation. If the fan is rotating at 120 rpm, the acceleration of a point on the tip of the blade is [1990]a)1600 ms–2b)47.4 ms–2c)23.7 ms–2d)50.55 ms–2Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An electricfan has blades of length 30cm measured from the axis of rotation. If the fan is rotating at 120 rpm, the acceleration of a point on the tip of the blade is [1990]a)1600 ms–2b)47.4 ms–2c)23.7 ms–2d)50.55 ms–2Correct answer is option 'B'. Can you explain this answer?.
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