If a rocket with a mass of 2500 tons vertically accelerates at a rate of # 7/3 ms^(-2)#, how much power will the rocket have to exert to maintain its acceleration at 5 seconds?

Answer 1

The power is #=350MW#

The mass of the rocket is #m=2500000kg#
The acceleration of the rocket is #a=7/3ms^-2#
The acceleration due to gravity is #=9.8ms^-2#

According to Newton's second Law of Motion, the net force on the rocket is

#F=m(a+g)=2500000*(9.8+7/3)=30333333N#
Assuming that the initial velocity of the rocket is #u=0ms^-1#
The velocity after #t=5s# is
#v=u+at=0+7/3*5=11.67ms^-1#

The power is

#P=Fv=30333333*11.67=350000000W=350MW#
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Answer 2

To calculate the power exerted by the rocket, we use the formula for power:

Power = Force × Velocity

First, we need to find the force exerted by the rocket. We can use Newton's second law of motion:

Force = Mass × Acceleration

Given that the mass of the rocket is 2500 tons and the acceleration is 7/3 ms^(-2), we can calculate the force:

Force = 2500 tons × 7/3 ms^(-2)

Next, we convert tons to kilograms:

1 ton = 1000 kilograms

So, 2500 tons = 2500 × 1000 kilograms

Now, we calculate the force:

Force = 2500 × 1000 kilograms × 7/3 ms^(-2)

Now, we have the force exerted by the rocket. Next, we need to find the velocity of the rocket at 5 seconds using the equation of motion:

Velocity = Initial velocity + (Acceleration × Time)

Given that the initial velocity is 0 m/s and the acceleration is 7/3 ms^(-2), and the time is 5 seconds, we can calculate the velocity:

Velocity = 0 + (7/3 ms^(-2) × 5 seconds)

Now, we have the velocity of the rocket. Finally, we can calculate the power exerted by the rocket using the formula:

Power = Force × Velocity

Substitute the values we calculated:

Power = (Force) × (Velocity)

Now, calculate the power.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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