A person is parachute jumping. During the time betweenwhen she leaps out of the plane and when she opens her chute, heraltitude is given by the equationy = (10000 m) - (50 m/s) [t + (5.0 s)e^-t/5.0].Find her velocity at t = 7.0 s. (This can be done on a calculator,without knowing calculus.) Because of air resistance, her velocity does not increase at a steady rate as it would for an object falling in vacuum