Q21.A car is moving on a plane inclined at 30° to the horizontal with an acceleration of 10 m s−2 parallel to the plane upward. A bob is suspended by a string from the roof of the car. The angle in degrees which the string makes with the vertical is (Take g = 10 m s−2 )
What This Question Tests
This question tests the ability to analyze forces on a body in a non-inertial frame of reference, specifically on an inclined plane. It requires applying the concept of pseudo force and resolving forces to find the equilibrium angle.
Concepts Tested
Formulas Used
F = ma
tanθ = F_net_horizontal / F_net_vertical
📚 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
4.5 — What Is The Magnitude Of Magnetic Force Per Unit Length On A Wire
Physics Class 11 · Chapter 4
4.5 What is the magnitude of magnetic force per unit length on a wire carrying a current of 8 A and making an angle of 30º with the direction of a uniform magnetic field of 0.15 T?
4.6 — A 3.0 Cm Wire Carrying A Current Of 10 A Is Placed Inside A Solenoid
Physics Class 11 · Chapter 4
4.6 A 3.0 cm wire carrying a current of 10 A is placed inside a solenoid perpendicular to its axis. The magnetic field inside the solenoid is given to be 0.27 T. What is the magnetic force on the wire?
📋 Question Details
- Chapter
- Laws of Motion
- Topic
- Pseudo force on an inclined plane
- Year
- 2021
- Shift
- 31 Aug Shift 1
- Q Number
- Q21
- Type
- Numerical
- NCERT Ref
- Class 11 Physics Ch 5: Laws of Motion
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