The tires of a car make 65 revolutions as the car reduces its speed uniformly from 95 km/hr to 45 km/hr. The tires have a diameter of 0.80 m. a. What is the angular acceleration of the tires? b. If the car continues to decelerate at this rate, how much more time is required for it to stop?
Angular speed, acceleration and displacement
Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.
Angular Position
Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.
The tires of a car make 65 revolutions as the car reduces its speed uniformly from 95
km/hr to 45 km/hr. The tires have a diameter of 0.80 m.
a. What is the
b. If the car continues to decelerate at this rate, how much more time is required for
it to stop?
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