A rough vertical board has an acceleration a along the horizontal, so that a block of…
Physics · JEE Advanced · NTA Exams — Laws of Motion
A rough vertical board has an acceleration a along the horizontal, so that a block of mass M pressing against it does not fall. The coefficient of friction between block and the board is:
- \(\geq \frac{a}{g}\)
- \(\leq \frac{g}{a}\)
- \(\leq \frac{a}{g}\)
- \(\geq \frac{g}{a}\)
Answer
(D) g a
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- Three blocks A, B and C of mass 3M, 2M and M, respectively, are suspended vertically with the help of springs…
- A wedge of mass 2m and a cube of mass m are shown in figure. Between cube and wedge, there is no friction…
- Three identical blocks are suspended on two identical springs one below the other as shown in figure. If…
- A circular plate of uniform thickness has a diameter of 28 cm. A circular portion of diameter 21 cm is…
- Two identical spheres A and B of radius r are released simultaneously from the positions as shown, in a…
- Assertion: Static frictional force is always greater than the kinetic frictional force. Reason: (Coefficient…
- The sphere A starts moving from one end with velocity V on the stationary wedge B of mass M, as shown, Find…
- A light string going over a clamped pulley of mass m supports a block of mass M as shown in the figure. The…
More Laws of Motion questions · Browse all practice questions