Physics - NLM Question with Solution | TestHub
PhysicsNLMFrictionMedium2 minQB
PhysicsMediumsingle choice
Statement-1: While running on a straight track with increasing speed work done by friction is not zero.
Statement-2: Work done by all the forces on a system is equal to the change in kinetic energy of the system.
Options:
Answer:
D
Solution:
Statement-1 is false: the contact point of the shoe with the track is instantaneously at rest, so static friction does no work while running.
Statement-2 is true: it is the work-energy theorem. Option (D).
Stream:JEESubject:PhysicsTopic:NLMSubtopic:Friction
⏱ 2mℹ️ Source: QB
Doubts & Discussion
Loading discussions...
