Question

A woodpecker's brain is specially protected from large decelerations by tendon-like attachments inside the skull. While pecking on a tree, the woodpecker's head comes to a stop from an initial velocity of 0.580 m/s in a distance of only 1.80 mm. (a) Find the acceleration in m/s2 and in multiples of g (g 9.80 m/s?). (Enter the magnitudes.) in m/s2 in multiples of g 9.54 93.4 m/s #8 (b) Calculate the stopping time (in s) 0.00621 (c) The tendons cradling the brain stretch, making its stopping distance 4.15 mm (greater than the head and, hence, less deceleration of the brain). What is the brain's deceleration, expressed in multiples of g? (Enter the magnitude.)

Answer 1

of motion ol a) from Ea u aton fo The accela Hon from Hu above oS The ini 누 al speed of the woodpeckers hadúo.530nh and it head velocity of the wood peckus head 2ero he occelbnotion of the sowdpeckes head s wwoodpeckens is moved by α distana cf 1.on o ..hnd

a de celer a ttom is the negatrve accelmatioy The Hene the dealnat on344 ms The value of g 9.8 m/sL The decelena tion in term of 3 s 1-101广 = 9.531 b)ホe dist ance travelled in an interval of treH ut v 6.206x10 s

e) from the gguatton o' mơ.an Th acelnatin fom the above tormuo aF if由stopping ditana ,a 4.15 mm 940.53n/st The value of gir 9.1m ブheddelaati on in tend 011"