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 0.633m/s in a distance of only 2.12mm . a) Find the acceleration in multiples of 9.8m/s2 (g). b) Calculate the stopping time. c) The tendons cradling the brain stretch, making its stopping distance 4.62mm (greater than the head and, hence, less deceleration of the brain). What is the brain's deceleration, expressed in multiples of g ?
Apply kinematic equation
v^2 - u^2 = 2as
a= v^2- u^2/ 2s
mod a = 0- (0.633)^2/ 2(2.12* 10^-3)
=94.5 m/s^2 ( g/9.8 m/s^2)
=9.64 g
(b)
s= ( v+u)/2 * t
t = 2s/ v+u
= 2(2.12* 10^-3)/0+0.633
=6.69 * 10^-3 s
(c)
mod a= v^2- u^2/ 2s
=0 - (0.633)^2/ 2(4.62 * 10^-3)
=43.36 m/s^2( g/9.8 m/s^2)
=4.42 g
A woodpecker's brain is specially protected from large decelerations by tendon-like attachments inside the skull. While...
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...
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 0.470 m/s in a distance of only 2.30 mm. Find the acceleration in m/s2 and in multiples of g (g = 9.80 m/s2) accleration: multiples of g: calculate the stopping time: The tendons cradling the brain stretch, making its stopping distance 5.06 mm (greater than the head and,...
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 0.570 m/s in a distance of only 2.05 mm. PLEASE PROVIDE STEPS FOR EACH PART: A, B, and C. (a) Find the acceleration in m/s^2 and in multiples of g (g = 9.80 m/s2). (Enter the magnitudes.) in m/s^2 = ________ m/s^2 in multiples of g = ______...