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Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 6 - Newton's Laws of Motion (With Friction) and Dynamics of Circular Motion > Block A as shown in Fig weighs `2.0 N` and block B weighs `6.0 N` The coefficient of kinetic friction between all surface is `0.25` Find the magnitude of the horizontal force necessary to drag block B to the left at constant speed if A and B are connected by a light , flexible cord passing around a fixed, frictionless pulley.

Block A as shown in Fig weighs `2.0 N` and block B weighs `6.0 N` The coefficient of kinetic friction between all surface is `0.25` Find the magnitude of the horizontal force necessary to drag block B to the left at constant speed if A and B are connected by a light , flexible cord passing around a fixed, frictionless pulley.

A block of mass `4 kg` is pressed against the wall by a force of `80N` as shown in figure Determine the value of the friction force and block's acceleration (Take u(s) = 0.2 u(s) = 0.15)`