JEE Main Physics question

Physics Laws of Motion JEE Main

**Statement 1:** Use of ball bearings between two moving parts of a machine is a common practice. **Statement 2:** Ball bearings reduce vibrations and provide good stability.

(A)Statement 1 is true, Statement 2 is true; Statement 2 is a correct explanation for Statement 1
(B)Statement 1 is true, Statement 2 is true; Statement 2 is not a correct explanation for Statement 1Correct
(C)Statement 1 is true, Statement 2 is false
(D)Statement 1 is false, Statement 2 is true

Answer: (B)

Solution

Ball bearings are indeed used very widely (Statement 1 is true). However, the actual reason is that they convert sliding friction into much smaller rolling friction, reducing

See the full step-by-step solution

Create a free account to read the complete working (2 steps), and practise questions like this in a timed test.

Create a free account

Question ID VK-152977