Yasmin determines the velocity of a car to be 15m/s. the accepted value for the velocity of the car is 15.6m/s. what is yasmins percent error ?

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

How would a small bar magnet be oriented when placed at position x?

Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?