Yet another bizarre baton is created by taking four identical balls, each with mass 0.294 kg, and fixing them as before except that one of the rods has a length of 1.01 m and the other has a length of 1.77 m. (a) Calculate the moment of inertia of this baton when oriented as shown in the figure.
I = kg · m2
(b) Calculate the moment of inertia of this baton when oriented as shown in the figure, with the shorter rod vertical.
I = kg · m2
(c) Calculate the moment of inertia of this baton when oriented as shown in the figure, but with longer rod vertical.
I = kg · m2

Anybody wanna ? (picture included? )

Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?

Abookcase has a mass of 38 kg and the coefficient of friction between it and the floor is 0.82 what is the maximum force of friction between the bookcase and the floor a 372n b 305n c 412n d 449n