Question

A 1.8 kg rock is released from rest at the surface of a pond 1.8 mm...

A 1.8 kg rock is released from rest at the surface of a pond 1.8 mm deep. As the rock falls, a constant upward force of 5.0 N is exerted on it by water resistance. Let y=0 be at the bottom of the pond.

Part G

Calculate the kinetic energy of the rock, KK, when the depth of the rock below the water's surface is 0.50 mm.

Express your answers using two significant figures.

Part H

Calculate the total mechanical energy of the system, EE, when the depth of the rock below the water's surface is 0.50 mm.

Express your answers using two significant figures.

Part J

Calculate the gravitational potential energy of the system, UU, when the depth of the rock below the water's surface is 1.0 mm.

Express your answers using two significant figures.

Part K

Calculate the kinetic energy of the rock, KK, when the depth of the rock below the water's surface is 1.0 mm.

Express your answers using two significant figures.

Part L

Calculate the total mechanical energy of the system, EE, when the depth of the rock below the water's surface is 1.0 mm.

Express your answers using two significant figures.

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