Question

On an aircraft carrier, a jet can be catapulted from 0 to 140 mi/h in 1.95 s . If the average force exerted by the catapult is 9.15Ã10^5 N , what is the mass of the jet?

Answer 1

Mass of the jet, m = 28511.5 kg

Step-by-step explanation:

It is given that,

Initial velocity if the jet, u = 0

Final velocity of the jet, v = 140 mi/h = 62.58 m/s

Time, t = 1.95 s

Average force,
`F=9.15* 10^5\ N`

We need to find the mass of the jet. According to second law of motion as :

F = m × a

`F=m* (v-u)/(t)`

`m=(F.t)/(v-u)`

`m=(9.15* 10^5\ N* 1.95\ s)/(62.58\ m/s-0)`

`m=28511.5\ kg`

So, the mass of the jet is 28511.5 kg. Hence, this is the required solution.