p143 Q1-3
1.What is meant by tangential speed?
It's the actual speed you are traveling at. It's also the linear speed.
2.Distinguish between tangential speed and rotational speed.
Tangential speed is the actual speed; rotational speed is the amount of revolutions in a certain time. And the unit for tangential speed is m/s; the unit for rotational speed is rpm.
3.What is the relationship between tangential speed and distance from the center of the rotational axis? Give an example.
They are directly proportional to each other. In the experiment we did today in class, the distance between me and the center is the farthest, therefore, my speed is bigger than others too.
p146 Q1&3
1.His rotational speed is the same as his friend's ; his tangential speed is slower than his friend's. My answers are different because there's no relationship between the radial distance and the rotational speed.
3.I guess that small wheel has bigger rotational speed and tangential speed.
1.What is meant by tangential speed?
It's the actual speed you are traveling at. It's also the linear speed.
2.Distinguish between tangential speed and rotational speed.
Tangential speed is the actual speed; rotational speed is the amount of revolutions in a certain time. And the unit for tangential speed is m/s; the unit for rotational speed is rpm.
3.What is the relationship between tangential speed and distance from the center of the rotational axis? Give an example.
They are directly proportional to each other. In the experiment we did today in class, the distance between me and the center is the farthest, therefore, my speed is bigger than others too.
p146 Q1&3
1.His rotational speed is the same as his friend's ; his tangential speed is slower than his friend's. My answers are different because there's no relationship between the radial distance and the rotational speed.
3.I guess that small wheel has bigger rotational speed and tangential speed.