Aboat is traveling with a velocity of 18 meters/second relative to water and the river is flowing at a velocity of 2.5 meters/second relative to the shore. what will be the velocity of the boat if the boat and the water are in opposite directions?

Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600