浜烘暀鐗堢墿鐞嗗叕寮?/p>
1
浜烘暀鐗堥珮涓墿鐞嗛珮涓�蹇呬慨
1
鍏紡
1.
V=X/t
V
鏄钩鍧囬�熷害锛?/p>
m/s
锛?/p>
X
鏄綅绉伙紙
m
锛?/p>
t
鏄椂闂达紙
s
锛?/p>
锛?/p>
2.
Vt=Vo+a0t
Vt
鏄湯閫熷害锛?/p>
m/s
锛?/p>
Vo
鏄垵閫熷害锛?/p>
m/s
锛?/p>
a
鏄姞閫熷害锛?/p>
m/s
虏锛?/p>
t
鏄椂闂达紙
s
锛?/p>
锛?/p>
3.
X=Vot+
锛?/p>
1/2
锛?/p>
at
虏
X
鏄綅绉伙紙
m
锛?/p>
Vo
鏄垵閫熷害锛?/p>
m/s
锛?/p>
t
鏄椂闂达紙
s
锛?/p>
a
鏄姞閫熷害锛?/p>
m/s
虏锛?/p>
锛?/p>
4.
Vt
虏
-Vo
虏
=2aX
Vt
鏄湯閫熷害锛?/p>
m/s
锛?/p>
Vo
鏄垵閫熷害锛?/p>
m/s
锛?/p>
a
鏄姞閫熷害锛?/p>
m/s
虏锛?/p>
X
鏄綅绉伙紙
m
锛?/p>
锛?/p>
5.
h=
锛?/p>
1/2
锛?/p>
gt
虏
Vt=gt Vt
虏
=2gh
h
鏄珮搴︼紙
m
锛?/p>
g
鏄噸鍔涘姞閫熷害锛?/p>
9.8m/s
虏鈮?/p>
10m/s
虏锛?/p>
t
鏄椂闂达紙
s
锛?/p>
Vt
鏄湯閫熷害锛?/p>
m/s
锛?/p>
锛?/p>
6. G=mg
G
鏄噸鍔涳紙
N
锛?/p>
m
鏄川閲忥紙
kg
锛?/p>
g
鏄噸鍔涘姞閫熷害锛?/p>
9.8m/s
虏鈮?/p>
10m/s
虏锛?/p>
锛?/p>
7. f=
渭
FN
f
鏄懇鎿﹀姏锛?/p>
N
锛?/p>
渭鏄姩鎽╂摝鍥犳暟
FN
鏄敮鎸佸姏锛?/p>
N
锛?/p>
锛?/p>
8. F=kX
F
鏄脊鍔涳紙
N
锛?/p>
k
鏄姴搴︾郴鏁帮紙
N/m
锛?/p>
X
鏄几闀块噺锛?/p>
m
锛?/p>
锛?/p>
9. F=ma
F
鏄悎鍔涳紙
N
锛?/p>
m
鏄川閲忥紙
kg
锛?/p>
a
鏄姞閫熷害锛?/p>
m/s
虏锛?/p>
銆?/p>
浜烘暀鐗堥珮涓墿鐞嗛珮涓�蹇呬慨
2
鍏紡
1
锛庢洸绾胯繍鍔ㄥ熀鏈寰?/p>
鈶犳潯浠讹細
v
0
涓?/p>
鍚?/p>
F
涓嶅叡绾?/p>
鈶￠�熷害鏂瑰悜锛氬垏绾挎柟鍚?/p>
鈶㈠集鏇叉柟鍚戯細鎬绘槸浠?/p>
v
0
鐨勬柟鍚?/p>
杞悜
鍚?/p>
F
鐨勬柟鍚?/p>
3
锛庣怀鎷夎埞闂
鈶犲涓庡�炬枩缁冲瓙鐩歌繛鐨勨�滅墿浣撯�濊繍鍔ㄥ垎瑙?/p>
鈶″悎杩愬姩锛氣�滅墿浣撯�濆疄闄呯殑杩愬姩
4
锛庤嚜鐢辫惤浣撹繍鍔?/p>
鈶犳湯閫熷害锛?/p>
gh
gt
v
t
2
飥?/p>
飥?/p>
鈶′笅钀介珮搴︼細
2
2
1
gt
h
飥?/p>
鈶笅钀芥椂闂达細
g
h
t
2
飥?/p>
5
锛庣珫鐩翠笅鎶涜繍鍔?/p>
鈶犳湯閫熷害锛?/p>
gt
v
v
t
飥?/p>
飥?/p>
0
鈶′笅钀介珮搴︼細
2
0
2
1
gt
t
v
h
飥?/p>
飥?/p>
鈶袱涓垎杩愬姩
缁冲瓙浼哥缉
缁冲瓙鎽嗗姩
2
锛庤埞娓℃渤闂
鏃堕棿鏈�鐭細
伪=90掳
锛?/p>
鑸?/p>
v
L
t
飥?/p>
璺▼鏈�鐭細
鑸?
姘?
v
v
飥?
飦?/p>
cos
锛?/p>
s=L