The equation below describes a physical situation: $$\frac { 1 } { 2 } ( 1.70 \mathrm {~kg} ) \left( 3.30 \frac { \mathrm { m } } { \mathrm { s } } \right) ^ { 2 } + ( 1.70 \mathrm {~kg} ) \left( 9.80 \frac { \mathrm { m } } { \mathrm { s } ^ { 2 } } \right) ( 2.35 \mathrm {~m} ) \sin 30 ^ { \circ }$$ $$= \frac { 1 } { 2 } ( 1.70 \mathrm {~kg} ) \left( 4.60 \frac { \mathrm { m } } { \mathrm { s } } \right) ^ { 2 } + 0.320 ( 1.70 \mathrm {~kg} ) \left( 9.80 \frac { \mathrm { m } } { \mathrm { s } ^ { 2 } } \right) ( 2.35 \mathrm {~m} ) \cos 30 ^ { \circ }$$ Which description best fits the equation? A)A 1.70 kg block slows down while sliding down a frictionless plane inclined at a 30$\degree$angle. B)A 1.70 kg block slows down while sliding down a plane with $\mu$_k = 0.320,with the plane inclined at a 30$\degree$ angle. C)A 1.70 kg block speeds up while sliding up a frictionless plane inclined at a 30$\degree$angle. D)A 1.70 kg block speeds up while sliding down a plane with $\mu$_k = 0.320,with the plane inclined at a 30$\degree$ angle. E)A 1.70 kg block slides over the top of an inclined plane and then descends on the other side.Both planes,inclined at a 30$\degree$angle,have$\mu$_k = 0.320.

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The Answer of The equation below describes a physical situation: $$\frac { 1 } { 2 } ( 1.70 \mathrm {~kg} ) \left( 3.30 \frac { \mathrm { m } } { \mathrm { s } } \right) ^ { 2 } + ( 1.70 \mathrm {~kg} ) \left( 9.80 \frac { \mathrm { m } } { \mathrm { s } ^ { 2 } } \right) ( 2.35 \mathrm {~m} ) \sin 30 ^ { \circ }$$ $$= \frac { 1 } { 2 } ( 1.70 \mathrm {~kg} ) \left( 4.60 \frac { \mathrm { m } } { \mathrm { s } } \right) ^ { 2 } + 0.320 ( 1.70 \mathrm {~kg} ) \left( 9.80 \frac { \mathrm { m } } { \mathrm { s } ^ { 2 } } \right) ( 2.35 \mathrm {~m} ) \cos 30 ^ { \circ }$$ Which description best fits the equation? A)A 1.70 kg block slows down while sliding down a frictionless plane inclined at a 30$\degree$angle. B)A 1.70 kg block slows down while sliding down a plane with $\mu$_k = 0.320,with the plane inclined at a 30$\degree$ angle. C)A 1.70 kg block speeds up while sliding up a frictionless plane inclined at a 30$\degree$angle. D)A 1.70 kg block speeds up while sliding down a plane with $\mu$_k = 0.320,with the plane inclined at a 30$\degree$ angle. E)A 1.70 kg block slides over the top of an inclined plane and then descends on the other side.Both planes,inclined at a 30$\degree$angle,have$\mu$_k = 0.320.

The Equation Below Describes a Physical Situation Which Description Best Fits the Equation? A)A 1

The Equation Below Describes a Physical Situation Which Description Best Fits the Equation?
A)A 1