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1. 2. From Unit II, we\'re focusing on (1) circular motion, (2) the conservation

ID: 2037171 • Letter: 1

Question

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From Unit II, we're focusing on (1) circular motion, (2) the conservation of stuff (energy, momentum, etc.), and (3) the conditions of equilibrium. So think back to what you already know to answer the following questions: Three objects are thrown upwards from the same spot and reach three different heights max,C max,B : 9C max.A Thrown from here At the positions shown, all three objects have lost equal amounts of kinetic energy from the moment when they were thrown upwards. Which object has the most mass? Ball A All three objects have equal masses O Ball C O Ball B

Explanation / Answer

object A has higher mass thats why even intial velocity is lesser than others it acquired more Kinetic energy.

the remaining B and C are of higher velocity objects but losses same KE means they are of less masses compared with A.

In the second question

the fish has a lesser density than person

the person has more mass

the fish displaces less water than person

the person has higher density than the water