Mgbanwe ntụgharị - nsogbu na ngwọta

1. A na-etinye ike F n'ime eriri e ji kechie ihe mkpuchi silinda. Toksi ahụ bụ 2 N m, oge inertia bụ 1 kg m ² , kedu ka silinda si na-agba ọsọ n'akụkụ .

A maara:

Torque ( τ ) = 2 N m

Oge nke inertia (I) = 1 kg m ²

Achọtara: Ọsọ ọsọ nke silinda ahụ

Ngwọta:

Στ = M α

Στ = net torque, I = oge inertia, α = osooso angular

Osooso akụkụ nke silinda:

α = Στ / I = 2/1 = 2 rad/s ²

[irp]

2. A na-etinye ike F n'ime eriri e ji kechie ihe mkpuchi silinda. Oke ike ahụ bụ 10 N, radius nke silinda ahụ bụ 0.2 m na oge inertia bụ 1 kg m 2, Gịnị bụ ọsọ nkuku nke silinda ahụ?

A maara:

Ike (F) = 10 N

Radius nke silinda (R) = 0.2 m

Oge nke inertia (I) = 1 kg m ²

Achọtara: Ọsọ ọsọ nke silinda ahụ.

Ngwọta:

τ = FR

τ = ike, F = ike, R = radius nke silinda

Torque:

τ = FR = (1 0 N) (0.2 m) = 2 N m

Στ = M α

Στ = net torque, I = oge inertia, α = osooso angular

Osooso akụkụ nke silinda:

α = Στ / I = 2/1 = 2 rad/s ²

[irp]

3. A na-etinye ike F n'ime eriri e ji kechie ihe mkpuchi silinda. Oke ike ahụ bụ 10 N, radius nke silinda bụ 0.2 m na oke nke silinda bụ 20 kg m ^2,. Gịnị bụ ọsọ nke silinda ahụ n'akụkụ.

A maara:

Ike (F) = 10 N

Radius nke silinda (R) = 0.2 m

Ibu nke silinda (M) = 20 kg

Achọrọ: Osote akụkụ nke silinda

Ngwọta:

τ = FR = (1 0 N) (0.2 m) = 2 N m

Oge nke inertia:

I = 1⁄2 MR ² = 1⁄2 (20)(0.2) ² = 1⁄2 (20)(0.04) = 0.4 kg m ²

Osooso akụkụ nke silinda:

α = Στ / I = 2 / 0.4 = 5 rad/s ²

[irp]

4. Blọk 1-kg nke kwụgidere n'elu eriri e ji kechie ihe mkpuchi silinda. Oge inertia nke ihe mkpuchi ahụ bụ 1 kg m ² na radius nke ihe mkpuchi ahụ bụ 0.2 m. Gịnị bụ ọsọ nkuku nke ihe mkpuchi ahụ. Ọsọ ọsọ nke ike ndọda bụ 10 m / s ².

A maara:

Oge nke inertia nke pulley (I) = 1 kg m ²

Ibu nke blọk (m) = 1 kg

Ọsọ ọsọ nke ike ndọda (g) = 10 m/s ²

Ibu (w) = mg = (1 kg)(10 m/s ² ) = 10 kg m/s ² = 10 N

Radius nke pulley (R) = 0.2 m

Achọrọ: Ọsọ ọsọ akụkụ

Ngwọta:

Torque:

τ = FR = w R = (1 0 N) (0.2 m) = 2 N m

Oge nke inertia:

I = 1 kg m ²

Ọsọ ọsọ n'akụkụ:

α = Στ / I = 2/1 = 2 rad/s ²

[irp]

5. Blọk 1-kg nke e ji eriri kechie gburugburu pulley silinda. Ibu nke pulley ahụ bụ kilogram 20 na radius nke pulley ahụ bụ 0,2 m. Gịnị bụ ọsọ ọsọ nke pulley ahụ na ọsọ ọsọ ọdịda nke blọk ahụ. Ọsọ ọsọ nke ike ndọda bụ 10 m/s ².

A maara:

Ibu nke pulley (M) = 20 kg

Radius nke pulley (R) = 0,2 m

Ibu nke blọk (m) = 1 kg

Ọsọ ọsọ nke ike ndọda (g) = 10 m/s ²

Ibu (w) = mg = (1 kg)(10 m/s ² ) = 10 kg m/s ² = 10 N

Achọsiri ike: osooso akụkụ nke pulley na osooso ọdịda n'efu nke blọk ahụ.

Ngwọta:

Ike ike:

τ = FR = w R = (1 0 N) (0.2 m) = 2 N m

Oge nke inertia nke cylinder pulley:

I = 1⁄2 MR ² = 1⁄2 (20)(0.2) ² = (10)(0.04) = 0.4 kg m ²

Ọsọ ọsọ nke pulley:

α = Στ / I = 2 / 0.4 = 5 rad/s ²

Ọsọ ọdịda n'efu nke ngọngọ ahụ:

a = R α = (0.2)(5) = 1 m/s ²