Rankbit System
JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)

jee_main_2025_04_april_morning - System of Particles and Rotational Motion Topics

Master these core formulas and structures to solve almost any past paper question.

Sample Questions in this Chapter

QUESTION #4 Torque and Angular Momentum
Which of the following are correct expression for torque acting on a body? A. vectau=vecItimesvecL B. vectau=fracddt(vecrtimesvecp) C. vectau=vecrtimesfracdvecpdt D. vectau=Ivecalpha E. vectau=vecrtimesvecF (vecr= position vector; vecp= linear momentum; vecL= angular momentum; vecalpha= angular acceleration; I= moment of inertia; vecF= force; t=texttime) Choose the correct answer from the options given below:
Start Practice →
QUESTION #11 Uniform Circular Motion and Dynamics
If vecL and vecP represent the angular momentum and linear momentum respectively of a particle of mass 'm' having position vector vecr = a(haticosomega t + hatjsinomega t). The direction of force is
Start Practice →
QUESTION #21 Rolling Motion on an Inclined Plane
A circular ring and a solid sphere having same radius roll down on an inclined plane from rest without slipping. The ratio of their velocities when reached at the bottom of the plane is sqrtfracx5 where x =
Start Practice →
YOUR FIRST PREP STEP STARTS HERE

We Map Every Repeating Question in Competitive Exams.

Say goodbye to generic mock test fatigue. RankBit uses smart analysis to group past exam questions into their foundational Repeating Question Types. Find chapter weightage, track repeating questions, and score higher with targeted practice.

Select Your Target Exam

Choose an exam track below to find formulas per chapter and patterns.

Syncing Exam Intelligence

Mapping formulas and patterns across all tracks…

PATH A — FULL LENGTH PRACTICE

Full Mock Test Hub

Simulate real NTA exam conditions with fully tracked mocks. Time yourself against past papers.

Under Development
PATH B — TARGETED PRACTICE

Topic-wise Practice Hub

Practice past-year questions one chapter at a time. Pick an exam → subject → chapter and get every PYQ for that topic — pulled together from all past papers — with the chapter's key formulas alongside.

Loading Questions... Browse Topics
Latest from the Blog
View all →

Loading articles...