On an aircraft carrier, a jet can be catapulted from 0 to 175 mi/h in 2.00 s. If the average force exerted by the catapult is 4.2 106 N what is the mass of the jet?

Answer 1

175 mi/h = 78.2 m/s

change in momentum = 78.2 * m

force = change in momentum / time

4.2*10^6 = 78.2 * m / 2
solve for m

Answer 2

V = 175mi/h * 1600m/mi * 1h/3600s = 77.8 m/s.

V = Vo + a*t.
77.8 = 0 + a*2,
a = 38.9 m/s^2.

Fap = M*a.
4.2*10^6 = M*38.9,
M = ?.

Answer 3

1.07 *10^3