Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET 2023
Exam
NEET
Year
2023
Subject
Physics
Chapter
Laws of Motion

NEET 2023 · Physics · Laws of Motion

The angular acceleration of a body, moving along the circumference...

The angular acceleration of a body, moving along the circumference of a circle, is:

Options

  1. Aalong the axis of rotation
  2. Balong the radius, away from centre
  3. Calong the radius towards the centre
  4. Dalong the tangent to its position

Correct answer

A. along the axis of rotation

Step-by-step solution

In terms of linear acceleration it is given as, a→=α→×r→\overset{\to}{a} = \overset{\to}{\alpha} \times \overset{\to}{r}. Clearly direction of linear acceleration is perpendicular to both angular acceleration and radius vector.

Angular acceleration of a body, moving along the circumference of a circle is along the axis of rotation.

Practice Laws of Motion on Quantrex Academy →

More from Laws of Motion

The magnitude and direction of the acceleration produced in a body of mass 5 kg when two… NEET 2026A box of mass 15 kg is kept on the floor of a stationary trolley. The coefficient of… NEET 2026A car travels on a circular racetrack of radius 50 m, which is banked at an angle θ . If… NEET 2026There are two inclined surface of equal length (L) and same angle of inclination 45^ ∘… NEET 2025A uniform rod of mass 20 kg and length 5 m leans against a smooth vertical wall making an… NEET 2025A box of mass 5 kg is pulled by a cord, up along a frictionless plane inclined at 30^ ∘… NEET 2024A bob is whirled in a horizontal circle by means of a string at an initial speed of 10… NEET 2024A horizontal force 10 N is applied to a block A as shown in figure. The mass of blocks A… NEET 2024 Full Laws of Motion list All NEET PYQs