For its size, the commonflea is one of the most accomplished jumpers in the animal world.A 2.0-mm-long, 0.50 mg flea can reach a height of 20 cm in a singleleap. Most humans can jump no more than 60 cm from a crouched start. What is the kinetic energy per kilogram of mass at takeoff for such a 65 kg person?

For its size, the commonflea is one of the most accomplished jumpers in the animal world.A 2.0-mm-long, 0.50 mg flea can reach a height of 20 cm in a singleleap. Most humans can jump no more than 60 cm from a crouched start. What is the kinetic energy per kilogram of mass at takeoff for such a 65 kg person?