Koj puas paub dab tsi yog qhov cuam tshuam?
Nws hais txog cov khoom siv ua haujlwm kom tiv taus lub zog hnyav lossis poob siab rau nws. Nws yog ib qho qhia tsis tseeb ntawm cov khoom siv lub neej nyob rau hauv ib qho chaw ib puag ncig thiab kub.
Rau qhov cuam tshuam ntawm iav vaj huam sib luag, muaj IK degree los txhais nws cov kev cuam tshuam sab nraud.
Qhov no yog tus qauv los xam qhov Impact J yogE = mg
E - qhov cuam tshuam tsis kam; Chav tsev J (N * m)
m - qhov hnyav ntawm lub pob zeb; Unit kg
g - lub ntiajteb txawj nqus acceleration tsis tu ncua; Unit 9.8m/s2
h - qhov siab thaum poob; Chav tsev m
Rau lub iav vaj huam sib luag nrog thickness ≥3mm tuaj yeem dhau IK07 uas yog E = 2.2J.
Ntawd yog: 225g steel pob poob los ntawm 100cm qhov siab mus rau iav nto yam tsis muaj kev puas tsuaj.
Saida iavsaib xyuas tag nrho cov ntsiab lus uas thov los ntawm cov neeg siv khoom thiab tuaj txog qhov kev daws teeb meem zoo tshaj plaws rau koj qhov project.
Post lub sij hawm: May-20-2020
