2 Mienzaniso yemibvunzo yekuenzanisa muviri wakasimba
1. F1 = 10 N, F2 = 15 N uye F4 = 10 N, ichishanda pabhuroko reABCD sezvakaratidzwa mumufananidzo. Kureba kwebhuroko reABCD mamita makumi maviri. Sarudza F3 kuitira kuti bhokisi riri muchimiro che "static equilibrium". Usatarisa huremu hwebhokisi.
Kukurukurirana:
2. Mabhokisi A (10 kg) naB (20 kg) akaiswa pabhodhi rehuni. Kureba kwebhodhi = mamita gumi. Kana bhokisi B rakaiswa mamita maviri kubva pachikamu chepakati, bhokisi A rinofanira kuiswa padaro ripi kubva pachikamu chepakati chepakati kuitira kuti bhodhi risatenderere? (g = 10 m/s 2 )
Kukurukurirana:
Danho 1: dhirowa dhayagiramu yemasimba ari kushanda pachinhu chacho
Danho rechipiri: gadzirisa dambudziko
Tarisa dhayagiramu iri pamusoro. Masimba anoshanda pabhodhi ndiwo giravhiti rebhokisi B (w B ), giravhiti rebhokisi A (w A ), huremu hwebhodhi (w board) uye simba rakajairika (N). Poindi yepivot ndiyo axis yekutenderera. Huremu hwebhodhi (w board) uye simba rakajairika (N) zvinoenderana ne fulcrum/axis yekutenderera zvekuti ruoko rwesimba i zero. w board na N hazvibatanidzwi mukuverenga.
Torque 1 = torque inogadzirwa nesimba rinokwevera rebhokisi B (torque yakanaka)
Torque 2 = torque inogadzirwa nehukuru hwebhokisi A (torque isina kunaka)
Bhodhi iri mu static equilibrium kana total torque = 0.
Kuti bhodhi rive rakafanana, chinhu A chinofanira kuiswa mamita mana kubva panzvimbo yekutsigira.
