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Learn about circular motion, a type of motion where an object moves along the circumference of a circle or rotation around a fixed axis. Find out the equations of motion, the centripetal force, the angular velocity and acceleration, and the polar coordinates for circular trajectories.
Learn the definition, formula and examples of centripetal force, a force that makes a body follow a curved path. See how centripetal force depends on speed, radius, acceleration and angular velocity in different cases of circular motion.
Learn about the kinematics and dynamics of rotational motion around a single axis, which is analogous to linear motion along a single direction. Find definitions, formulas, examples, and applications of angular displacement, velocity, acceleration, torque, and moment of inertia.
Centrifugal force is a fictitious force that appears to act on objects in a rotating frame of reference. It is proportional to the mass, distance and angular velocity of the frame. Learn more about its history, applications and relation to inertia.
Learn about the three physical laws that describe the relationship between the motion of an object and the forces acting on it. Newton's first law, also known as the law of inertia, states that a body remains at rest or in motion at a constant speed in a straight line unless acted upon by a force.
Acceleration is the rate of change of velocity of an object with respect to time. Learn how to calculate acceleration using the formula a = dv/dt or a = d2x/dt2, and see different types of acceleration such as tangential, radial, deceleration and centripetal.
Upper panel: Ball on a banked circular track moving with constant speed ; Lower panel: Forces on the ball.The resultant or net force on the ball found by vector addition of the normal force exerted by the road and vertical force due to gravity must equal the required force for centripetal acceleration dictated by the need to travel a circular path.
Learn about the equations that describe the behavior of a physical system in terms of its motion as a function of time. Find out the types, history and applications of kinematics and dynamics, and the SUVAT equations for constant acceleration.