At what speed would iron man have to fly in order to have


a) A 250.0 N force moves a 120.0 kg crate from rest to a final speed of 9.6 m/s. If the frictional force is 50.0 N, what is the displacement of the crate at the time it reaches this speed?

b) Iron Man has a mass of 200 kg while the mass of the Incredible Hulk is 800 kg. At what speed would Iron Man have to fly in order to have the same amount of kinetic energy as the Hulk running at 10 m/s?

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Physics: At what speed would iron man have to fly in order to have
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