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Grade: 11

                        

a person A of 50 kg rest on a swing length 1m making an angle 37° with vertical another person But pushes him to swing on the other side 53° with vertical . the work done by the person B is

3 years ago

Answers : (2)

Ankita
19 Points
							
100 joules must be the answre.. just apply work energy theorem properly to get it..........................😎😎😎
2 years ago
Ankita
19 Points
							
Draw the scene on paper to figure out that there is a net displacement of 1/5 m in y axis .
Sowork done by gravity is m×g× 1/5= 💯 joules😎😎...
 
Displacement =1/5 because 2/5. -1/5=1/5 ..
And i don't know how to add attachment 🤣🤣🤣🤣😎😎😎 
 
100joules😎😎
  1.  
2 years ago
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  • Discussion Forum
  • Previous Year Exam Questions


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