1. Huremu hwe2-kg hwakabatanidzwa nechitubu. Kana kureba kwechitubu kuri 4 cm, tsvaga simba rinogona kuwanikwa nechitubu chinonamira . Kukurumidza kunokonzerwa nekukweva kwesimba remagetsi i10 m/s 2.
Zvinozivikanwa:
Huremu (m) = 2 kg
Kukurumidza kunokonzerwa negiravhiti (g) = 10 m/s 2
Huremu (w) = mg = (2)(10) = 20 N
Kureba (x) = 4 cm = 0.04 m
Zvinodiwa: Simba rinogona kuwanikwa muchitubu chinonamira
Solution:
Fomura yemutemo waHooke :
F = kx
F = simba, k = chitubu chisingachinji, x = kuchinja kwehurefu hwechitubu
Chirimo chinogara kwenguva refu:
k = w / x = 20 / 0.04 = 500 N/m
Simba rinogona kuwanikwa muchitubu chinopfava:
PE = ½ kx 2 = ½ (500) (0.04) 2 = (250) (0.0016) = 0.4 Joules
Imwe mhinduro:
PE = ½ kx 2 = ½ (w / x) x 2 = ½ wx = ½ mgx
w = huremu, m = huremu, x = kuchinja kwehurefu hwechitubu
PE = ½ (2) (10) (0.04) = (10) (0.04) = 0.4 Joules.
[irp]
2. Kureba kwechitubu kwakatambanudzwa nesimba F = 50 N i10 cm. Ndeipi simba rinogona kushandiswa nechitubu chinopfava kana kureba kwechitubu kuri 12 cm.
Zvinozivikanwa:
Kureba (x) = 10 cm = 0.1 m
Simba (F) = 50 N
Zvinodiwa : Simba rinogona kuwanikwa muchitubu chinonamira
Solution:
Chirimo chinogara kwenguva refu:
k = F / x = 50 / 0.1 = 500 N/m
Simba rinogona kuwanikwa muchitubu chinonamira kana kureba kwechitubu kuri 12 cm. :
PE = ½ kx 2 = ½ (500) (0.12) 2 = (250) (0.0144) = 3.6 Joules.
[irp]
3. Girafu yeF vs x inoratidzwa mumufananidzo uri pazasi. Ndeipi simba rinogona kushandiswa nechitubu chinopfava, kana kureba kwechitubu kuri 10 cm.
Zvinozivikanwa:
Simba (F) = 5 N
Kureba kwechitubu (x) = 2 cm = 0.02 m
Zvinodiwa: Simba rinogona kuwanikwa muchitubu chinopfava kana kureba kwechitubu kuri 0.1 m.
Solution:
Chirimo chinogara kwenguva refu:
k = F / x = 5 / 0.02 = 250 N/m
Simba rinogona kuwanikwa muchitubu chinopfava kana kureba kwechitubu kuri 0.1 m:
PE = ½ kx 2 = ½ (250) (0.1) 2 = (125) (0.01) = 1.25 Joules.
4. Mutambi anosvetukira pachiridzwa chechirimo chine huremu hwe500 N, chitubu chinopfupika ne4 cm. Sarudza huwandu hwesimba rinogona kumanikidza mutambi.
A. 20 Joule
B. 10 Joule
C. 5 Joule
D. 2 Joule
Zvinozivikanwa:
Simba (F) = 500 N
Kuchinja kwehurefu hwechitubu (Δx) = 4 cm = 0.04 m
Zvinodiwa: Simba rinogona kuwanikwa muchirimo
Solution:
Verenga chisipiti che elastic constant uchishandisa equation yemutemo waHooke:
k = F / Δx = 500 N / 0.04 m = 12500 N/m
Simba rinoita kuti chitubu chive chakasimba:
PE = ½ k Δx 2 = ½ (12500) (0.04) 2 = (6250) (0.0016)
PE = 10 Joule
Mhinduro chaiyo ndeiyi B.
5. Chitubu kana chakarembera chine huremu hwemagiramu mazana mashanu, kureba kwacho kunowedzera ne5 cm. Sarudza simba rayo risingaperi uye rinokwanisa kushanda.
Zvinozivikanwa:
Huremu hwechinhu (m) = 500 magiramu = (500/1000) kg = 5/10 kg = 0.5 kg
Kukurumidza (g) = 10 m/s 2
Kurema kwechinhu (w) = mg = (0.5 kg)(10 m/s 2 ) = 5 kg m/s 2 = 5 Newtons
Kuchinja kwehurefu hwechitubu (Δx) = 5 cm = 0.05 m
Zvinodiwa: simba rechirimo (k) uye simba rinogona kushandiswa (PE)
Solution:
Kutanga, verenga chiverengero chechirimo uchishandisa equation yemutemo waHooke:
k = w / Δx = 5 N / 0.05 m = 100 N/m
Kugona kunamira kwechirimo:
PE = ½ k Δx 2 = ½ (100) (0.05) 2 = (50) (0.0025)
PE = 0.125 Joule
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- Basa rinoitwa nechisimba matambudziko uye mhinduro
- Matambudziko esimba rekushanda nemhinduro
- Matambudziko nemhinduro dzesimba rebasa-remakanika
- Matambudziko esimba rinogona kukweva simba uye mhinduro dzaro
- Simba rinogona kuwanikwa mumatambudziko e elastic spring uye mhinduro dzaro
- Matambudziko emagetsi nemhinduro
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- Kushandiswa kwekuchengetedza simba remakanika pakufamba mundege yakatsamira
- Kushandiswa kwekuchengetedza simba remakanika pakufamba kwezviratidziro
