1). A student is swinging on a swing at the playground. At their maximum height, they are 2.3 meters from the ground. When they reach that height, they are not moving for a moment. What is their potential energy at this maximum height if their mass is 60 kg? J. Use g = 10m/s/s for your calculation. 2) For the student swinging on the swing at the playground, what is their maximum velocity? Remember that their mass is 60 kg. m/s. Round to the nearest hundredth (2 decimal places)

3) A toy car has a maximum speed of 13 m/s and a mass of 2.5 kg. If the car were to launch itself vertically off a ramp, what would the maximum height in the air be? m. Round to the hundredths place (2 decimal places).