Q3. A child of mass 5 kg is going round a merry-go-round that makes 1 rotation in 3. 14 s. The radius of the merry- go-round is 2 m. The centrifugal force on the child will be (1) 80 N (2) 40 N (3) 100 N (4) 50 N
What This Question Tests
This question tests the ability to calculate centrifugal force given mass, radius, and time period of revolution using the formula F = mω²r.
Concepts Tested
Formulas Used
F = mω²r
ω = 2π/T
📚 NCERT Sections This Tests
6.11 — Dynamics Of Rotational
Physics Class 11 · Chapter 6
6.11 Dynamics of rotational the motion of extended bodies. motion about a fixed axis A large class of problems with extended bodies can be
4.12 — In Exercise 4.11 Obtain The Frequency Of Revolution Of The Electron In
Physics Class 11 · Chapter 4
4.12 In Exercise 4.11 obtain the frequency of revolution of the electron in its circular orbit. Does the answer depend on the speed of the electron? Explain.
12.7 — The Radius Of The Innermost Electron Orbit Of A Hydrogen Atom Is
Physics Class 12 · Chapter 12
12.7 The radius of the innermost electron orbit of a hydrogen atom is 5.3×10–11 m. What are the radii of the n = 2 and n =3 orbits?
📋 Question Details
- Chapter
- Laws of Motion
- Topic
- Centrifugal force
- Year
- 2023
- Shift
- 06 Apr Shift 2
- Q Number
- Q3
- Type
- MCQ
- NCERT Ref
- Class 11 Physics Ch 5: Laws of Motion
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