JEE Main 2025 Physics question
Which of the following are correct expression for torque acting on a body? A. B. C. D. E. ( = position vector; = linear momentum; = angular momentum; = angular acceleration; I = moment of inertia; = force; t = time) Choose the correct answer from the options given below:
Answer: (3)
Solution
τ=r×L is incorrect. τ=d/dt(r×p), τ=r×dp/dt=r×F, τ=Iα, and τ=r×F are all correct