Question
How fast a car can pull 100kg Iron? the energy of car is 10hp
Joshi sir comment
E= ∫Fds
= ∫ma ds
= ∫m( dv / dt) ds
= ∫m dv (ds/dt)= ∫mvdv
= 1/2 mv2
so v =(2E/m) 1/2 now use mass 100kg & given energy after converting in SI units
This answer is given by SARIKA SHARMA and is correct, we made some modifications only
Read 1 Solution.
E= Fds
= ma ds
= m( dv / dt) ds
= m dv (ds/dt)= mv 2= E => v =( E/m) 1/2 now use mass 100kg & given energy after converting in SI units
SARIKA SHARMA 11 year ago
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