鎶涗綋杩愬姩
鐭ヨ瘑瑕佺偣
涓�銆佸寑鍙橀�熺洿绾胯繍鍔ㄧ殑鐗瑰緛鍜岃寰?/p>
飪?/p>
鍖�鍙橀�熺洿绾胯繍鍔細鍔犻�熷害鏄竴涓亽閲忋�佷笖涓庨�熷害鍦ㄥ悓涓�鐩寸嚎涓娿�?/p>
鍩烘湰鍏紡锛?/p>
銆?/p>
銆?
锛堝彧閫傜敤浜庡寑鍙橀�熺洿绾胯繍鍔級
銆?/p>
飩?/p>
褰?/p>
v
0
=0
銆?/p>
a=g
锛堣嚜鐢辫惤浣撹繍鍔級
锛屾湁
v
t
=gt
銆?/p>
銆?
銆?/p>
銆?/p>
飩?/p>
褰?/p>
V
0
绔栫洿鍚戜笂銆?/p>
a= -g
锛?/p>
绔栫洿涓婃姏杩愬姩
锛?/p>
銆?/p>
娉ㄦ剰锛?/p>
(1)
涓婂崌杩囩▼鏄寑鍑忛�熺洿绾胯繍鍔紝涓嬭惤杩囩▼鏄寑鍔犻�熺洿绾胯繍鍔ㄣ�?/p>
(2)
鍏ㄨ繃绋嬪姞閫熷害澶у皬鏄?/p>
g
锛屾柟鍚戠珫鐩村悜涓嬶紝鍏ㄨ繃绋嬫槸鍖�鍙橀�熺洿绾胯繍鍔?/p>
(3)
浠庢姏鍑哄埌钀藉洖鎶涘嚭鐐圭殑鏃堕棿锛?/p>
t
鎬?/p>
= 2
V
0
/
g
=2
t
涓?/p>
=2
t
涓?/p>
(4)
涓婂崌鐨勬渶澶ч珮搴︼紙鐩稿鎶涘嚭鐐癸級锛?/p>
H=v
0
2
/
2
g
(5)*
涓婂崌銆佷笅钀界粡杩囧悓涓�浣嶇疆鏃剁殑鍔犻�熷害鐩稿悓锛岃�岄�熷害绛夊�煎弽鍚?/p>
(6)*
涓婂崌銆佷笅钀界粡杩囧悓涓�娈典綅绉荤殑鏃堕棿鐩哥瓑銆?/p>
(7)*
鐢ㄥ叏绋嬫硶鍒嗘瀽姹傝В鏃讹細鍙栫珫鐩村悜涓婃柟鍚戜负姝ｆ柟鍚戯紝
S
>0
琛ㄧず姝ゆ椂鍒昏川鐐圭殑浣嶇疆鍦?/p>
鎶涘嚭鐐圭殑涓婃柟锛?/p>
S
<0
琛ㄧず璐ㄧ偣浣嶇疆鍦ㄦ姏鍑虹偣鐨勪笅鏂广�?/p>
v
t
>0
琛ㄧず鏂瑰悜鍚戜笂锛?/p>
v
t
<0
琛ㄧず鏂?/p>
鍚戝悜涓嬨�傚湪鏈�楂樼偣
a=-g
v
=0
銆?/p>
浜屻�佽繍鍔ㄧ殑鍚堟垚鍜屽垎瑙?/p>
1
锛庝袱涓寑閫熺洿绾胯繍鍔ㄧ殑鐗╀綋鐨勫悎杩愬姩鏄?/p>
___________________
杩愬姩銆備竴鑸潵璇达紝涓や釜鐩寸嚎杩?/p>
鍔ㄧ殑鍚堣繍鍔ㄥ苟涓嶄竴瀹氭槸
____________
杩愬姩锛屼篃鍙兘鏄?/p>
_____________
杩愬姩銆傚悎杩愬姩鍜屽垎杩?/p>
鍔ㄨ繘琛岀殑鏃堕棿鏄?/p>
__________
鐨勩�?/p>
2
锛庣敱浜庝綅绉汇�侀�熷害鍜屽姞閫熷害閮芥槸
______
閲忥紝瀹冧滑鐨勫悎鎴愬拰鍒嗚В閮芥寜鐓?/p>
_________
娉曞垯銆?/p>
涓夈�佹洸绾胯繍鍔?/p>
鏇茬嚎杩愬姩涓川鐐圭殑閫熷害娌?/p>
____________
鏂瑰悜锛屾洸绾胯繍鍔ㄤ腑锛岀墿浣撶殑閫熷害鏂瑰悜闅忔椂闂磋�屽彉
鍖栵紝鎵�浠ユ洸绾胯繍鍔ㄦ槸涓�绉?/p>
__________
杩愬姩锛屾墍鍙楃殑鍚堝姏涓�瀹?/p>
.
蹇呭叿鏈?/p>
_________
銆傜墿
浣撳仛鏇茬嚎杩愬姩鐨勬潯浠舵槸
________ ________
銆?/p>
鍥涖�佸钩鎶涜繍鍔紙璁惧垵閫熷害涓?/p>
v
0
锛?/p>
1
锛庣壒寰侊細鍒濋�熷害鏂瑰悜
____________
锛屽姞閫熷害
____________
銆傛槸涓�绉?/p>
銆?/p>
銆?/p>
銆?/p>
2
锛庢�ц川鍜岃寰嬶細
姘村钩鏂瑰悜锛氬仛
______________
杩愬姩锛?/p>
v
X
=
v
0
銆?/p>
x
=
v
0
t
銆?/p>
绔栫洿鏂瑰悜锛氬仛
______________
杩愬姩锛?/p>
v
y
=
gt
锛?/p>
銆?/p>
y
=
gt
2
/2
锛?/p>
銆?/p>
鍚堥�熷害锛?/p>
V
=
锛屽悎浣嶇Щ
S
=
銆?/p>
3
锛庡钩鎶涜繍鍔ㄧ殑椋炶鏃堕棿鐢?/p>
鍐冲畾锛屼笌
鏃犲叧銆?/p>
浜斻�佹枩鎶涜繍鍔紙璁惧垵閫熷害涓?/p>
v
0
锛屾姏灏勮涓?/p>
胃
锛?/p>
1
锛庣壒寰侊細鍒濋�熷害鏂瑰悜
_______________
锛屽姞閫熷害
________________
銆?/p>
2
锛庢�ц川鍜岃寰嬶細
姘村钩鏂瑰悜锛氬仛
______________
杩愬姩锛?/p>
v
X
=
銆?/p>
x
=
绔栫洿鏂瑰悜锛氬仛
______________
杩愬姩锛?/p>
v
y
=
銆?/p>
y
=
銆?/p>
鍚堥�熷害锛?/p>
V
=
锛屽悎浣嶇Щ
S
=
銆?/p>
3
锛庡湪鏈�楂樼偣
a=-g
v
y
=0