Question

a chameleons tounge can whip out to catch a fly in 0.1 seconds. the acceleration of the lounge is 32 meters per second squared. what is the final velocity of the tounge when it gets the fly?

Answer 1

Given

chameleon having the acceleration in order to catch a fly in time t = 0.1 s ,is a = 32 m/s^2

the final velocity of the tounge when it gets fly is v = ?

here the tounge starts with initial velocity u = 0 m/s

from equations of motions v = u+at  

v = 0+32*0.1 m/s

v = 3.2 m/s

so the final velocity of the tounge is v = 3.2 m/s