Assertion: A carpet is wrapped like a cylinder and is pushed on a horizontal surface to unwrap. As the carpet unwraps its angular speed is found to increase. Reason: Angular momentum of rolling part remains conserved

Assertion: A carpet is wrapped like a cylinder and is pushed on a hori

1.	Assertion: A carpet is wrapped like a cylinder and is pushed on a horizontal surface to unwrap. As the carpet unwraps its angular speed is found to increase. Reason: Angular momentum of rolling part remains conserved
Answer» If both assertion and reason are CORRECT and reason is the correct explanation of the assertion. If both assertion and reason are correct but reason is not the correct explanation of assertion If assertion is correct but reason is INCORRECT. If assertion is incorrect but reason is correct Solution : Angular momentum of rolling part is not constant due to torque of tension applied from stationary part on the surface. When carpet is unfolded then CENTRE of mass of system goes down and decrease in gravitational potential energy of the system RESULTS in the FORM of increased kinetic energy of rolling part.