A box weighing 30 and pushed a distance of 5 m how much work was done

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain