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akash kashyp Grade: Upto college level
        

a body is projected at an angle 60 with horizontal plane with k.E 'k' when the velocity makes 30 with x axiz what is its k.E?


-if t1,t2 are the time of flights for two complimentary angles then range( in terms of g,t1,t2) is?

7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear akash


let initial velocity is u


and v is the velocity when it make angel 30


ucos60=vcos30


v=u/√3


 


k=1/2 m u2


u=√(2k/m)


so v=√(2k/3m)


now K .E =1/2 m v2


             =k/3 





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Badiuddin

7 years ago
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