- #1
Punchlinegirl
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Two 18.0 kg ice sleds are placed a short distance apart, one directly behind the other, as shown in the figure. A 4.72 kg cat, initially standing on sled 1, jumps across to sled 2 and then jumps back to sled 1. Both jumps are made at a horizontal speed of 3.79 m/s relative to the ice. What is the final speed of sled 2? (Assume the ice is frictionless.)
I tried using conservation of momentum.
(18.0 + 4.72)(3.79)= (18.0)v
solving for v gave me 4.78 m/s which wasn't right.
Can someone help?
thanks
I tried using conservation of momentum.
(18.0 + 4.72)(3.79)= (18.0)v
solving for v gave me 4.78 m/s which wasn't right.
Can someone help?
thanks