Initially, the rotation speed of the ride is high enough, so Einstein will not slip on the wood plank. Once the rotation speed starts to decrease, the normal force that provides the centripetal acceleration for the system decreases too, and eventually the friction between Einstein and the plank is small enough so Einstein will start slipping on the plank. Use Newton's 2nd law to balance forces acting on Einstein and evaluate the static friction coefficient. g

i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.

v=ir = 3x15 =45 v

the five characteristics of adolescence are biological growth and development, and undefined status, increased decision making, increased pressure and the search of self.