Question

Dock diving is a great form of athletic competition for dogs of all shapes and sizes. Sheba, the American Pit Bull Terrier, runs and jumps off the dock with an initial speed of 8.62 m/s at an angle of 28° with respect to the surface of the water. (Assume that the +x axis is in the direction of the run and the +y axis is up.)

(a) If Sheba begins at a height of 0.88 m above the surface of the water, through what horizontal distance does she travel before hitting the surface of the water?
m

(b) Write an expression for the velocity of Sheba, in component form, the instant before she hits the water. (Express your answer in vector form.)
v =

m/s

(c) Determine the peak height above the water reached by Sheba during her jump.
m

Answer 1

Sol Gu'ven 19.3 2 V cosd &28. Th verticle ans - Vsin& t 4.9 2-4.05 4.9 t-4.0S-A 0.88 -. tac 2 xa 4.05)2 u(49) (o88) + 4.05 t t : + 2 .9 1.00 arfone , += L0o, Time is alway pasihive trawelled i's Honi zonta ds tance v ca& t 7.61 m Final verhicle velocity 5.75 m/s 4-05-9.8 Inhal henizental velea ty Final honizent velocihy V Cosa 7.61 mls 6.- 5.15f) nl iT

Peak hetjkt d 9ivn CC) 0.80 2x9.8 1-72