Apolice dog gets caught in a shootout. a 5 g bullet moving at 100 m·s–1 strikes the dog and lodges in his shoulder. fortunately the dog survives. the bullet undergoes uniform acceleration and penetrates his shoulder to a depth of 6 cm. calculate the time taken for the bullet to stop

 V² = U² + 2 a S
Here V = final velocity = 0  of the bullet as it stopped
       U = initial velocity before the bullet entered the shoulder = 100 m/s
       a  = ?
       S = distance traveled by bullet under the acceleration/deceleration. = 6 cm
         = 0.06 meter

a = (0² - 100²) / 2 * 0.06  =  - 83,333 meters/sec²  = - 8.333 * 10^4 m/sec²
It is negative as it is a deceleration.      Now ,let us calculate the time duration T taken by the bullet to stop after entering the shoulder.

V = u + a t      Here, we have V = final velocity = 0.    u is 100 m/s    a is found above.
So   0  = 100 - 83333  T         =>      T =  100 / 83333  = 1.2 milliseconds

Iread this book last year so take this with a grain of salt.gene jumps from the tree to compete with finny due to the fact that gene is always trying to do better than finny. he is put under the grasp of peer pressure due to finny almost forcing him to do this. ever since he first jumped finny kept pressuring him to jump since he thought gene enjoyed jumping.rather than uses this answer you should probably just reread chapters 3-4

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.