A 1.25kg duck is initially flying due west at 13.5m/s. A 16.0g bullet moving at
ID: 2262176 • Letter: A
Question
A 1.25kg duck is initially flying due west at 13.5m/s. A 16.0g bullet moving at 350.0m/s strikes the duck at 33.0 deg from the horizontal, as shown. the bullet remains lodged in the duck after being stricken.
(a) determine the final velocity and direction of the duck after the ordeal.
(b) determine the maximum height of the duck due to the ordeal.
Explanation / Answer
Momentum of bullet = 0.016 * 350*(cos 33 i + sin 33 j)
Momentum of Bird = -1.25 * 13.5 i
Total momentum = -12.175 i + 3.05 j
Final velocity = Momentum / total mass = -9.617 i + 2.41j m/s
Speed = 9.9 m/s ; Direction = 14 degree with x axis in negative direction
b) s = u*u/2g = 2.41*2.41/2*9.81 = 0.296 m
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.