A child travels down a water slide, leaving it with a velocity of 4.2 m/s horizontally as shown below. The child then experiences projectile motion, landing in a swimming pool 3.2 m below the slide. a) For how long is the child airborne?

b) Determine the child’s horizontal displacement while in the air.

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