Askydiver finds that she speeds up when she holds her arms close to her body. what does this do? a. it increases the force of gravity. b. it reduces the force of gravity. c. it increases the force of air resistance d. it reduces the force of air resistance.

Suppose that a mass of 2 kg is attached a spring whose spring constant is 50. the system is damped such that b = 12 . the mass is set in motion with an initial velocity of -8 m/s at a position 0 meters from equilibrium. set up and solve a differential equation that models this motion. write your solution in the form a cos ( ω t − α ) where α is a positive number. use your solution to fill in the information below: what is the amplitude of the motion? what is the value of ω ? what is the phase shift?