PHYSICS · Multi-part · CBSE · Physics · Laws of Motion · Laws of Motion
Problem
Two blocks are in contact on a horizontal, frictionless surface. Block 1 has mass 1.5kg and block 2 has mass 4.0kg. A constant horizontal force of 21N is applied to block 1, pushing the blocks to the right so that they move together without slipping relative to each other.
(a) Calculate the magnitude of the acceleration of the two-block system.
(b) Determine the magnitude of the force that block 2 exerts on block 1.
(c) Suppose instead that the surface is rough, with a coefficient of kinetic friction μk=0.10 for both blocks. The same 21N force continues to act on block 1. Calculate the new acceleration of the system, showing all steps in your reasoning.