Physics, asked by danishjoshi111, 1 year ago

One car {A} does work in 10 seconds . Another car {B} does the same work in 5 seconds . Which car will consume more fuel in doing the same amount of work ?

Ashu31: Power = Energy/Time

Ashu31: Fuel = Energy

Ashu31: Power is inversely proportional to Time.

Ashu31: Srry

Ashu31: I will explain this to u tomorrow in the class..

Answers

Answered by TheRuhanikaDhawan

car A
BECAUSE TIME CONSUMED IS MORE SO THERE WILL BE MORE FUEL CONSUMPTION

pahiroy1221: ya , i also think that only

pahiroy1221: no no let me think

danishjoshi111: According to me : Power is inversely proportional to time so the power of car B will be grater than car B as time taken by car B is less

pahiroy1221: if time is more then power will be reduced and if power is reduced then energy is also reduced

danishjoshi111: Sorry the power of car B will be grater than car a

pahiroy1221: see the above line

TheRuhanikaDhawan: BUT THE WORK WILL BE DONE FASTER IN CAR B SO FUEL CONSUMED WILL BE LESS

danishjoshi111: This is the equation : Power = Work / Time ; This means more the time less will be power

pahiroy1221: and here fuel is energy

TheRuhanikaDhawan: ok sorry

Answered by pahiroy1221

the answer is (B) because power is inversely proportional to time so if time increases power will be reduced and if power reduces then energy would be increased so the option is (b)

pahiroy1221: thanx

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