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As an automotive engineer, you're charged W

As an automotive engineer, you're charged W

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please use the pictures below. it is the circled one.

find (a) its angular CM momentum about the pivot P and (b) the constant torque 43 cm- 31 cm applied about P to achieve this an- FIGURE 11.15 Problem 44 gular momentum in 0.25 s. (Hint: Remember the parallel-axis theorem.) 45. As an automotive engineer, you're charged with redesigning a car's wheels with the goal of decreasing each wheel's angular mo- mentum by 30% for a given linear speed of the car. Other design considerations require hat the wheel diameter go from 38 cm to 35 cm. If the old wheei rotational inertia 0.29 kg•m, what do 210 you specify for the new rotational inertia? 46. A turntable of radius 15 cm and rotational inertia 0.0115 kg•m² is spinning freely at 32.0 rpm about its central axis, with a 20.5-g mouse on its outer edge. The mouse walks from the edge to the center. Find (a) the new rotation speed and (b) the work done by the mouse. the edge 47. A 20-kg dog is standing on of a stationary, frictionless
Transcribed Image Text:find (a) its angular CM momentum about the pivot P and (b) the constant torque 43 cm- 31 cm applied about P to achieve this an- FIGURE 11.15 Problem 44 gular momentum in 0.25 s. (Hint: Remember the parallel-axis theorem.) 45. As an automotive engineer, you're charged with redesigning a car's wheels with the goal of decreasing each wheel's angular mo- mentum by 30% for a given linear speed of the car. Other design considerations require hat the wheel diameter go from 38 cm to 35 cm. If the old wheei rotational inertia 0.29 kg•m, what do 210 you specify for the new rotational inertia? 46. A turntable of radius 15 cm and rotational inertia 0.0115 kg•m² is spinning freely at 32.0 rpm about its central axis, with a 20.5-g mouse on its outer edge. The mouse walks from the edge to the center. Find (a) the new rotation speed and (b) the work done by the mouse. the edge 47. A 20-kg dog is standing on of a stationary, frictionless
um CM find (a) its angular 20gom with his momentum about pocket inning the pivot P and (b) the constant torque 43 cm 31 cm- 0.950 applied about P to achieve this an- gular momentum in 0.25 s. (Hint: Remember the parallel-axis FIGURE 11.15 Problem 44 erpen- of his h (a) theorem.) 45. As an automotive engineer, you're charged with redesigning a car's wheels with the goal of decreasing each wheel's angular mo- mentum by 30% for a given linear speed of the car. Other design considerations require that the wheel diameter go from 38 cm to 35 cm. If the old wheel had rotational inertia 0.29 kg•m², what do you specify for the new rotational inertia? 46. A turntable of radius 15 cm and nal inertia 0.0115 kg•m is spinning freely at 32.0 rpm about its central axis, with a 20.5-g mouse on its outer edge. The mouse walks from the edge to the center. Find (a) the new rotation speed and (b) the work done by the mouse. 47. A 20-kg dog is standing on the edge of a stationary, frictionless turntable of rotational inertia 85 kg•m² and radius 1.95 m. The the ply he i- CH d dog walks once around the turntable What fraction of a full cir-
Transcribed Image Text:um CM find (a) its angular 20gom with his momentum about pocket inning the pivot P and (b) the constant torque 43 cm 31 cm- 0.950 applied about P to achieve this an- gular momentum in 0.25 s. (Hint: Remember the parallel-axis FIGURE 11.15 Problem 44 erpen- of his h (a) theorem.) 45. As an automotive engineer, you're charged with redesigning a car's wheels with the goal of decreasing each wheel's angular mo- mentum by 30% for a given linear speed of the car. Other design considerations require that the wheel diameter go from 38 cm to 35 cm. If the old wheel had rotational inertia 0.29 kg•m², what do you specify for the new rotational inertia? 46. A turntable of radius 15 cm and nal inertia 0.0115 kg•m is spinning freely at 32.0 rpm about its central axis, with a 20.5-g mouse on its outer edge. The mouse walks from the edge to the center. Find (a) the new rotation speed and (b) the work done by the mouse. 47. A 20-kg dog is standing on the edge of a stationary, frictionless turntable of rotational inertia 85 kg•m² and radius 1.95 m. The the ply he i- CH d dog walks once around the turntable What fraction of a full cir-
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