Question

A1. A 300-kg wooden raft is floating on lake Bemidji. When a 70-kg physicist stands on the raft, it sinks 3 cm deeper in the water. When he steps off, it starts to bob up and down in place. What is the raft's oscillation frequency?

X = 0:05 m 16 0 4. The world's largest pumpkin (M-1200 kg, R - 1.0 m) is at the top of a 10.0-m-long ramp making an angle of 15° with the horizontal. It is released from rest and begins to roll down the ramp without slipping. What is the linear speed (in m/s) of the pumpkin as it reaches the bottom of the ramp? Assume the pumpkin is a uniform solid sphere (l =-MR2). 2 M 1200 1200 2 D m

Answer 1