A particle moves in a force field given by: F = r F , where r is a unit vector along the…
Physics · JEE Main · NTA Exams — Rotational Motion
A particle moves in a force field given by: \(\vec{F}=\hat{r} F\), where \(\hat{\boldsymbol{r}}\) is a unit vector along the position vector \(\hat{\boldsymbol{r}}\), then which is true?
- The torque acting on the particle is not zero
- The torque acting on the particle produces an angular acceleration in it
- The angular momentum of the particle is conserved
- The angular momentum of the particle increases
Answer
(C) The angular momentum of the particle is conserved
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- A disc of radius r rolls on a horizontal ground with linear acceleration a and angular acceleration as shown…
- A particle completes 3 revolutions per second on a circular path of radius 8 cm. Find the values of angular…
- A wheel comprises of a ring of radius R and mass M and three spokes of mass m each. The moment of inertia of…
- The earth, radius 6400 km, makes one revolution about its own axis in 24 hours. The centripetal acceleration…
- If a particle moves in the X – Y plane, the resultant angular momentum has:
- Two cars of masses m 1 and m 2 are moving along the circular path of radius r 1 and r 2 . They take one round…
- A spherical ball of mass 20 kg is stationary at the top of a hill of height 100 m. It goes down a smooth…
- A body is moving with a constant speed v in a circle of radius r. Its angular acceleration is-
More Rotational Motion questions · Browse all practice questions