The froghopper holds the title of the best jumper of the animal world. A 0.0198-gram (1.98 X 10-5 kg) froghopper can accelerate from 0m/s to 4m/s in only one one thousandth of a second (0.001 s) as it jumps. What is the force delivered to the froghopper as it makes this jump?

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Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.