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t Explorer https:/ session masteringphysics.com/myct itemView?assignmentProblemD: 81455959 CH2 2 Problem 2.34 previo Problem 2.34 Part A Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. In a typical strike, the chameleon's tongue accelerates at a remarkable 260 m/s for 20 ms, then travels at constant speed for another 30 ms During this total time of 50 ms 1/20 of a second, how tar does the tongue reach? Express your answer to two significant figures and include the appropriate units Submit My Answers Give Up

Explanation / Answer

here,

for t1 = 0.02 s

a = 260 m/s^2

finals speed , v1 = a * t1

v1 = 260 * 0.02 = 5.2 m/s

d1 = 0 + 0.5 * a * t1^2

d1 = 0.052 m
  
for t2 = 0.03 s

d2 = v1 * t2

d2 = 5.2 * 0.03 = 0.156 m

the distance reached by tounge , d = d1 + d2

d = 0.156 + 0.052 m = 0.21 m

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