A block of mass 2 kg is released from rest on a smooth

Last updated: 6/19/2023

A block of mass 2 kg is released from rest on a smooth inclined plane of inclination 30 and connected by a massless spring of force constam 1000 N m as shown in figure Initially the spring is in its natural length An external variable force also acts on the block down the inclined plane Block comes to rest for a moment after travelling a distance of 20 cm along the inclined plane From initial to this moment list I gives work done by various forces and list II gives their values Pomomomo 20cm A 2kg 30 List I P Work done by gravity Q Work done by spring R Work done by external force S Work done by normal force P 2 Q 1 R 3 S 4 List II 1 zero 2 18 J 3 20 J 4 2 J