Mibvunzo mitatu nezve equation yenguva dzose yechirimo
1. Chitubu chiri mu free suspension chine urefu hwe 10 cm. Pamucheto wakasununguka, huremu hwe 200 gram hunosungirirwa kuitira kuti hurefu hwe spring huve 11 cm. Kana g = 10 m/s2, chii chinonzi simba rechitubu risingaperi?
Anozivikanwa:
Kureba kwekutanga kwechitubu (y1) = 10 cm = 0.10 m
Kureba kwekupedzisira kwechitubu (y2) = 11 cm = 0.11 m
Kuchinja kwehurefu hwechitubu (Δy) = 0.11 – 0.10 = 0.01 mamita
Huremu hwemutoro (m) = 200 magiramu = 0.2 kg
Kurema kwemutoro (w) = mg = (0,2)(10) = 2 Newtons
Kuda: Chimiro chenguva dzose chechirimo (k)
Solution:
Fomura yenguva dzose yechirimo:
F = k Δy
k = F / Δy = 2 / 0,01 = 200 / 1 = 200 Newtons/mita
2. Chitubu chinogona kutatamurwa zvekuti chinotambanudzwa ne10 cm nesimba rinokwanisa kusvika 0.5 Joule. Chii chinonzi chitubu chinoramba chiripo?
Anozivikanwa:
Kuwedzerwa kwehurefu hwechitubu (Δy) = 10 cm = 0.1 mita
Simba remuchirimo (EP) = 0.5 Joules
Kuda: Chimiro chenguva dzose chechirimo (k)
Solution:
Chimiro chechirimo chinoverengerwa uchishandisa fomura yeSpring Potential Energy:
EP = ½ k Δy2
2 EP = k Δy2
2 (0,5) = k (0,1)2
1 = k (0,01)
k = 1 / 0,01 = 100 / 1 = 100 Newtons/mita
3. Chitubu chinodhonzwa nesimba re100 N chinowedzera kureba kwacho ne5 cm. Verenga chitubu chisingachinji.
Anozivikanwa:
Simba (F) = 100 N
Kuwedzera kwehurefu hwechitubu (Δx) = 5 cm = 0.05 m
Kuda: Chimiro chenguva dzose chechirimo (k)
Solution:
F = k Δx
k = F / Δx = 100 / 0,05 = 10.000 / 5 = 2000 Newtons/mita
