A car is traveling around a curved, flat road at a uniform speed. Indicate whether each statement is true or false: • The net force on the car is zero. • The net force is away from the center of the curve. • Kinetic friction holds the car in the circle. • If the car did speed up, friction would have to increase to keep the car on the road.
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.
A car is traveling around a curved, flat road at a uniform speed. Indicate whether each statement is true or false: • The net force on the car is zero. • The net force is away from the center of the curve. • Kinetic friction holds the car in the circle. • If the car did speed up, friction would have to increase to keep the car on the road.
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