9. Work & Energy
Net Work & Work-Energy Theorem
9. Work & Energy Net Work & Work-Energy Theorem
50PRACTICE PROBLEM
A small ball of mass 2.3 kg was initially moving with a velocity v̄0 = (11.0 î + 31.0 ĵ) m/s. Afterward, a force F̄ acted on it for 3.0 s. As a result, its final velocity became v̄f = (20.0 î + 35.0 ĵ) m/s. Calculate the work done on the ball by the force F̄.
A small ball of mass 2.3 kg was initially moving with a velocity v̄0 = (11.0 î + 31.0 ĵ) m/s. Afterward, a force F̄ acted on it for 3.0 s. As a result, its final velocity became v̄f = (20.0 î + 35.0 ĵ) m/s. Calculate the work done on the ball by the force F̄.