Consider two projectiles that can be shot upward by spring guns. Object A is made of solid aluminum and has a mass of 50 grams. Object B is made of cast iron and has a mass of 200 grams. For this problem, you may take the gravitational field strength to be g = 10 N/kg. i. Masses A and B are both shot straight upward at the same time. Mass A is shot with a speed of 2 m/s and mass B with a speed of 1 m/s. Which one hits the ground first? They will hit the ground at the same time. Object A It is impossible to determine this. Object B
ii) Explain your reasoning in part i
iii) Find an equation that express how high a ball rises, if it is shot straight up with a speed v0, it has a mass m, and the gravitational field strength is g. Solve h= in terms of g, m, and v0
iv) Both masses are shot upward with a velocity of 2.0 m/s. How high does object A go in meters? (Ignore air resistance.) ha= in meters
v) Both masses are shot upward with a velocity of 2.0 m/s. How high does object B go in meters? (Ignore air resistance.) hA= meters
vi) Masses A and B are both shot straight upward at the same time. Mass A is shot with a speed of 2 m/s and mass B with a speed of 1 m/s. Which one hits the ground first?
vii) Name three physical quantities you could calculate based on this information.