Physics - W.E.P. Question with Solution | TestHub

PhysicsW.E.P.Calculation of workEasy2 minQB
PhysicsEasysingle choice

A block of mass 1 kg is pushed up a surface inclined to horizontal at an angle of 60° by a force of 10 N parallel to the inclined surface as shown in figure. When the block is pushed up by 10 m along inclined surface, the work done against frictional force is : g=10 m s-2

Options:

Answer:
B
Solution:

Work done against frictional force  

=μN×10=μmgcos60°×10

=0.1×5×10=5 J

Stream:JEESubject:PhysicsTopic:W.E.P.Subtopic:Calculation of work
⏱ 2mℹ️ Source: QB

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