Kinetic simba - matambudziko uye mhinduro

Kinetic simba - matambudziko uye mhinduro

1. Mota mbiri dzine zvakafanana uremu, kufamba nesimba rakasiyana rekinetic. simba reinetic Simba remotokari yekutanga rinopetwa ka9 kupfuura simba remotokari yechipiri. Kuenzanisa kumhanya kwemotokari yekutanga nemotokari yechipiri ndekwekuti…..

Zvinozivikanwa:

Misa yemota A (m_A) = m

Huremu hwemota B (m_B) = m

Simba rekufamba kwemotokari B (K)E_B) = KE

Simba rekufamba kwemotokari A (KE_A) = 9 KE

Kuda: Kuenzanisa kumhanya kwemotokari yekutanga nemotokari yechipiri

Solution:

Kuenzanisa kwesimba rekinetic:

KE = 1/2 mv²

2 KE = mv²

v² = 2KE /m

Kumhanya kwemotokari A:

v² = 2KE_A /m_A = 2 (9 K)E) / m = 18 KE /m

Kumhanya kwemotokari B :

v² = 2KE_B /m_B = 2KE / m = 2 KE /m

Kuenzanisa kumhanya kwemotokari A nemotokari B:

18 KE / m: 2 KE /m

18: 2

9: 1 = 3² : 1²

2. Simba rekinetic rechinhu chiri panzvimbo B = 100 J. Kana huremu hwechinhu chacho i2.5 kg, ipapo ona simba rekufamba kwechinhu chacho apo it inorova pasi panzvimbo C. Kuwedzera nekuda kwegiravhiti iri 10 m/s².

mhinduro

Simba rekufamba kwechinhu parinosvika panzvimbo B:

PE = mgh = (2.5)(10)(4) = 100 Joules

Simba rekinetic rechinhu parinosvika panzvimbo C:

PE = mgh

PE = (2.5)(10)(4 + 6)

PE = (2.5)(10)(10)

PE = 250 Joule