1. Shay dhululubo ah oo godan (I = m R 2 ) ayaa u dhaqaaqa inuu rogrogo isagoon kor u simbirixan diyaarad qallafsan oo leh xawaare bilow ah oo ah 10 m/s. Diyaaradda janjeedhsan waxay leedahay xagal kor u qaadis ah θ oo leh tan θ = 0.75. Haddii dardargelinta cufisjiidadka g = 10 ms -2 , xawaaraha shayga waxaa loo dhimayaa 5 ms -1 markaa masaafada ku taal diyaaradda janjeedhsan ee shayga waa…
La yaqaan:
Daqiiqadda firfircoonida dhululubada godan (I) = m R 2
xagal sare = θ , halka tan θ = 0.75 = 75/100 = opp / adj
Sin θ = opp / hyp = 75/125 = 3/5 = 0.6
Dardargelinta cufisjiidadka awgeed (g) = 10 m/s 2
Xawaaraha bilowga ah (vo o ) = 10 m/s
Xawaaraha kama dambaysta ah (v t ) = 5 m/s
La doonayo: masaafada 
Xalka:
Xisaabi dhererka uu dhululubadu gaaro adoo isticmaalaya isle'egta ilaalinta tamarta farsamada.
Dhererka bilowga ah (h o ) = 0 mitir
Xawaaraha bilowga ah (vo o ) = 10 m/s
Xawaaraha kama dambaysta ah (v t ) = 5 m/s
Dardargelinta cufisjiidadka awgeed (g) = 10 m/s 2
Dhululubadu waxay gaartaa dherer dhan 7.5 mitir.
Masaafada uu dhululubo ku safray:
Masaafada uu dhululubadu maro waa 12.5 mitir.
Jawaabta saxda ah waa A.
Sharaxaadda isla'egta:
o = bilow, t = kama dambays, ME = tamar farsamo , PE = tamar suurtagal ah, KE = tamar kinetic , m = cuf , g = dardargelin ay ugu wacan tahay cufisjiidadka, h = dherer, v = xawaare toosan, ω = xawaare xagal ah , I = daqiiqadda inertia, R = gacanka dhululubada
2. Dhululubo adag (I = ½ m R 2 ) oo leh cuf dhan 3 kg ayaa u dhaqaaqa inuu rogrogo isagoon kor u simbirixanayn diyaarad qallafsan oo leh xagal kor u kac ah θ oo leh sin θ = 0.6. Haddii dardargelinta cufisjiidadka g = 10 ms -2 iyo xawaaraha bilowga ah ee shaygu yahay 10 m/s, markaa dhererka diyaaradda janjeedhsan ee uu shay safray waa…
La yaqaan:
Daqiiqadda firfircoonida dhululubada adag (I) = ½ m R 2
Cufka dhululubada = 3 kg
Xawaaraha bilowga ah (vo o ) = 10 m/s
Xawaaraha kama dambaysta ah (v t ) = 0 m/s (joojinta walxaha)
xagal sare ( θ ) = θ , halka dembiga θ = 0.6 = 6/10 = opp/hyp
Dardargelinta cufisjiidadka awgeed (g) = 10 m/s2
La Doonayo: Dhererka diyaaradda janjeerta ee ay ku safartay shayga
Xalka:
Xisaabi dhererka uu dhululubadu gaaray adoo isticmaalaya isle'egta ilaalinta tamarta farsamada.
Dhererka bilowga ah (h o ) = 0 mitir
Xawaaraha bilowga ah (vo o ) = 10 m/s
Xawaaraha kama dambaysta ah (v t ) = 0 m/s (joojinta walxaha)
Dardargelinta cufisjiidadka awgeed (g) = 10 m/s 2
Dhululubadu waxay gaartaa dherer dhan 7.5 mitir.
Masaafada uu dhululubo ku safray:
Masaafada uu dhululubadu maro waa 12.5 mitir.
3. Shay dhululubo godan (I = m R 2 ) oo leh gacan R, ayaa u dhaqaaqa inuu rogo isagoon kor u simbirixanayn diyaarad qallafsan oo leh xagal α ah halkaas oo sin α = 0.8. Haddii dardargelinta cufisjiidadka g = 10 ms -2 oo xawaaraha bilowga ahi yahay 8 ms -1 markaa dhererka diyaaradda janjeedhsan ee uu shaygu gaaro ka hor inta uusan istaagin waa…
La yaqaan:
Daqiiqadda firfircoonida dhululubada adag (I) = m R 2
Xawaaraha bilowga ah (vo o ) = 8 m/s
Xawaaraha kama dambaysta ah (v t ) = 0 m/s (joojinta walxaha)
xagasha sare ee diyaarada u janjeedha ( θ ) = θ , halkaas oo dembi θ = 0.8
Dardargelinta cufisjiidadka awgeed (g) = 10 m/s 2
La Raadinayo: Masaafada ay ku safartay dhululubo
Xalka:
Xisaabi dhererka uu dhululubadu gaaray adoo isticmaalaya isle'egta ilaalinta tamarta farsamada.
Dhererka bilowga ah (h o ) = 0 mitir
Xawaaraha bilowga ah (vo o ) = 8 m/s
Xawaaraha kama dambaysta ah (v t ) = 0 m/s
Dardargelinta cufisjiidadka awgeed (g) = 10 m/s 2
Dhululubadu waxay gaartaa dherer dhan 6.4 mitir.
Masaafada uu dhululubo ku safray:
Masaafada uu dhululubadu maro waa 8 mitir.
