PHYSICS HIGH SCHOOL

A sled is moving at a constant speed down a surface inclined at 45.0° with the horizontal and travels 30 meters in 4 seconds. Calculate the vertical velocity of the sled at the end of 4 seconds. A) 5.3 meters/second B) 4.3 meters/second C) 9.8 meters/second D) 2.3 meters/second

Answers

Answer 1
Answer:

Answer:

Option A is the correct answer.

Explanation:

Velocity of sled can be calculated by dividing displacement to time.

Displacement = 30 m

Time = 4s

\texttt{Velocity, v = }(30)/(4)=7.5m/s

Vertical velocity component is vsinθ

Vertical velocity = vsinθ = 7.5 x sin 45 = 5.3 m/s

Option A is the correct answer.
Answer 2
Answer: A sled is moving at a constant speed down a surface inclined at 45.0° with the horizontal and travels 30 meters in 4 seconds. Calculate the vertical velocity of the sled at the end of 4 seconds.The answr is letter D. 2.3 meters per second

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Ohm's law is a law that states that the voltage across a resistor is directly proportional to the current flowing through the resistance

using ohm's law

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voltage would be necessary to generate 10 amps of current in a circuit that has 5 ohms of resistance will be 50 V

learn more about ohm's law

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U = R * I \rightarrow U = 10 * 5 = 50 V

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