4 mark for review a rocket contained 467,000 kilograms (kg) of propellant before launch. exactly 21 seconds…

4 mark for review a rocket contained 467,000 kilograms (kg) of propellant before launch. exactly 21 seconds after launch, 362,105 kg of this propellant remained. on average, approximately how much propellant, in kg, did the rocket burn each second after launch? a 4,995 b 17,243 c 39,481 d 104,895

4 mark for review a rocket contained 467,000 kilograms (kg) of propellant before launch. exactly 21 seconds after launch, 362,105 kg of this propellant remained. on average, approximately how much propellant, in kg, did the rocket burn each second after launch? a 4,995 b 17,243 c 39,481 d 104,895

Answer

Explanation:

Step1: Calculate propellant burned

Find the amount of propellant burned by subtracting the remaining amount from the initial amount. Initial amount is 467000 kg and remaining is 362105 kg. So, the amount burned is $467000 - 362105=104895$ kg.

Step2: Calculate burn - rate per second

Divide the total amount of propellant burned by the time in seconds. Time is 21 seconds. So the burn - rate per second is $\frac{104895}{21}=4995$ kg/s.

Answer:

A. 4,995