2. In projectile motion (such as with a thrown baseball), which is true about velocity
and acceleration
?
(A)
is always tangent to the path and
is always downward.
(B)
is always perpendicular to the path and
is always horizontal.
(C)
is always perpendicular to the path and
is always downward.
(D)
is always tangent to the path and
is always horizontal.
(E)
is always downward and
is always tangent to the path.
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統計: 尚無統計資料
統計: 尚無統計資料