()()()3.00 903.60 2155.86 59.8 .fiJppp=Δ =−=∠ ° −∠° =∠°GGG G(a) The magnitude of the impulse is 5.86 kg m/s 5.86 N s⋅=⋅.(b) The direction of JGis 59.8° measured counterclockwise from the +xaxis. (c) Eq. 9-35 leads to 3avg35.86 N s5.86 N s 2.93 10 N.2.00 10 sJF tF−⋅=Δ=⋅¡=≈××We note that this force is very much larger than the weight of the ball, which justifies our (implicit) assumption that gravity played no significant role in the collision.
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