Question

On an aircraft carrier, a jet can be catapulted from 0 to 250 km/h in 2.05 s

Answer 1

Answer:

mass = 27750 kg

Explanation:

acceleration: (change in velocity)÷(time)

acceleration = (final velocity - initial velocity) ÷ time taken

Given that:

Final velocity is 250 km/h and initial is 0 km/h and time is 2.05s

• change 2.05s to hrs. that is 0.0005694444 hrs

acceleration = [(250 - 0) ÷ 0.0005694444]

acceleration = 439024.4 km/h²

conversion to m/s² :

acceleration = 439024.4 m/s²

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Force = mass(kg) * acceleration(m/s²)

we know that force is  9.40×10^5 N

9.40×10^5 = mass(kg) *   33.875 (m/s²)

mass =  9.40×10^5 ÷  33.875

mass = 27750 kg

Answer 2

Answer: The mass of the jet is 26,225

Explanation: Convert 250km to m =250,000

1 hour = 3600

Velocity = 69.4 m/s

a= change in v/change in t

69.4/2 = 34.7

9.10×105 / 34.7 = 26,225 KG

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