1. A 32 kg child sits at one end of a 3.8 m long seesawWhere should her 72 kg father sit so the center of mass will be at the center of the seesaw?
Answer the following questions:
1. A 32 kg child sits at one end of a 3.8 m long seesawWhere should her 72 kg father sit so the center of mass will be at the center of the seesaw?
2. A firework explodes into three pieces as shown in the diagram below. Now that you have set up the equation for the x and y components of the final momentum of the firework, let's do some physics!
Given:
∙∙ The initial firework had a mass of 9.0 kg and was launched at vi = 50 m/s vertically straight up.
∙∙ The firework explodes into three pieces of equal mass 3.0 kg. The angles θ1 = θ3 = 40 ∘.
∙∙ Speed v1 = 100 m/s.
What is the speed v2?
Note: the angles shown for mass m1 and mass m3 are relative to the horizontal x-axis. Mass m2 is moving straight up (y-axis).
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