It is important that the mass of this base be sufficiently great that its relative velocity to that of the common centre of gravity of itself and the striking weight may be disregarded.
(_d_) It may deform the struck body as a whole against the resisting stresses developed by its own inertia, as, for example, when a baseball bat is broken by striking the ball.
|-------------------------------------------------------| | TABLE X | |-------------------------------------------------------| | RESULTS OF IMPACT BENDING TESTS ON SMALL CLEAR BEAMS | | OF 34 WOODS IN GREEN CONDITION | | (Forest Service Cir.

213) | |-------------------------------------------------------| | | Fibre | | Work in | | COMMON NAME | stress at | Modulus of | bending | | OF SPECIES | elastic | elasticity | to | | | limit | | elastic | | | | | limit | |-------------------+-----------+------------+----------| | | | | In.-lbs.

| | | Lbs.

per | Lbs.

per | per cu.