Brittany stands at rest on a skateboard. The combined mass of Brittany and the skateboard is...
Brittany stands at rest on a skateboard. The combined mass of Brittany and the skateboard is 64 kg . Dave tosses a 3.7-kg pumpkin to Brittany, and when she catches it, she and the skateboard begin to roll backward with a speed of 0.12 m/s .
What was the speed of the pumpkin?
Homework Answers
0.12 (64+3.7)=3.7*v
0.12 (67.7) = 3.7 * v
8.124 = 3.7 * v
8.124/3.7 = v
v= 2.1956 m/s or rounding up...2.2 m/s
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