Use the information provided below to determine:

a$.$ The angular impulse that generated the combined gravitational torque and the triceps torque.

b$.$ Average net torque if this movement took $0\mathrm{.}1$ seconds.

i $=0$ rad$/$s

f $=-20$ rad$/$s

t $=0\mathrm{.}1$ s

Forearm and hand segment moment of

inertia about elbow, Ie $=0\mathrm{.}25$ kg$$m$2.$

a$.$ What is the moment of inertia of her arm at the beginning of the spike?

b$.$ What is the moment of inertia of her arm at the instant of contact?

c$.$ What is the angular momentum of her arm at the instant of contact?

d$.$ What is the average net shoulder torque if the spike took $80$ ms$?$