Aperson exerts a 19-n force on a cart attached to a spring and holds the cart steady. the cart is displaced 0.060 m from its equilibrium position. when the person stops holding the cart, the system cart spring undergoes simple harmonic motion. determine the spring constant of the spring. express your answer with the appropriate units.

An airplane flies eastward and always accelerates at a constant rate. at one position along its path it has a velocity of 34.3 m/s, it then flies a further distance of 40100 m and afterwards its velocity is 47.5 m/s. find the airplane\'s acceleration and calculate how much time elapses while the airplane covers those 40100 m.

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

Mutt and jeff are running along a path each pushing a cart loaded with rocks. if mutt's wagon has a mass two times greater than jeff's and they want to stay together, arriving at their destination at the same time, what must happen? a) jeff should slow down so mutt can catch up. b) mutt must use half as much force to push his cart. c) mutt must use twice as much force to push his cart. d) mutt and jeff will use the same force, but mutt will take bigger steps.