he llywheel s inagy is 1500 J, what is its final energy? Wk-1500-47 3. around a

Question

he llywheel s inagy is 1500 J, what is its final energy? Wk-1500-47 3. around a 0.50-m radius circle it has an angular speed of 12 rad/s. The circle is parallel to the xy plane and is centered on the z axis, 0.75 m from the origin. Find its angular momentum around the origin. 4. Two objects are moving in the x, y plane as shown. If a net torque of 44 Nm acts on them for 5.0 seconds, what is the change in their angular momentum? 2 m/s 1 m 5. A cube with edges exactly 2 cm long is made of material with a bulk modulus of 3.5 x 10' N/m2. Find its volume, when it is subjected toa pressure of 3.0 x 10 Pa. 8 S,S 10 999m

Explanation / Answer

The vector sum of all torques acting on a particle is equal to the time rate of change of the angular momentum of that particle.

So:

T = change in angular momentum/change in time

=> change in angular momentum = T* change in time

= 44*5 = 220 kg-m2/s

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