MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A 52.0 kg cheetah accelerates from rest to its top speed of 30.9 m/s. HINT (a) How much net work (in ]) is required for the cheetah to reach its top speed? 1606.8 X ] (b) One food Calorie equals 4186 J. How many Calories of net work are required for the cheetah to reach its top speed? Note: Due to inefficiencies in converting chemical energy to mechanical energy, the amount calculated here is only a fraction of the energy that must be produced by the cheetah's body. Cal Need Help? Read It Watch It