Which of the following would produce the most power? A. A mass of 2 kilograms lifted 10 meters in 10 seconds B. A mass of 5 kilograms lifted 5 meters in 10 seconds C. A mass of 1 kilograms lifted 10 meters in 5 seconds D. A mass of 2 kilograms lifted 10 meters in 5 seconds

Question

JoshuaK · Accepted Answer

Answer:DExplanation:Formula for power: P = W/ΔtFormula for work: W = N.s = m.a.sFormula for force: F = m.aFormula for acceleration: a = [tex]rac{vt-v0}{t}[/tex]vt = final velocityv0 = starting velocityt = time(edit)since the questions state how high the item travels in a set period of time, here's how to calculate the speed and acceleration!for example:I'll use block A.Block A traveled 10 meters in 10 seconds, so the speed would be 10 meters divided by 10 seconds, which equates to 1 m/s.The acceleration would be 1 m/s, which is the final velocity, minus 0, which is the starting velocity, divided by 10 seconds, which is the amount of time required to travel the set distance. So, following the formula, the equation would be a = [tex]rac{1 - 0}{10 s}[/tex], which equals [tex]rac{1}{10}[/tex] m/s², or 0.1 m/s².Using those numbers, we can calculate the amount of force produced, which is F = m.a. Plugging the numbers in, it would be F = 2 kg. 0.1 m/s², which equals 0.2 N.From here, we just need to calculate the work using W = m.a.s, which calculates to W = 0,2N . 10 m = 2 J, and calculate the amount of power it would generate using P = W/Δt, which calculates to P = 2 J / 10 s, which is the amount of time required to travel the set distance. After all that, we get the equation P = 2 J / 10 s, which equals to 0.2 Watts.A: Power = F.s/Δt = (2 kg . 1 m²/s²) / 10 s = 0.2 WB: Power = F.s/Δt = (5 kg . 0.5 m²/s²) / 10 s = 0.25 WC: Power = F.s/Δt = (1 kg . 2 m²/s²) / 5 s = 0.4 WD: Power = F.s/Δt = (2 kg . 2 m²/s²) / 5s = 0.8 WHence, D would produce the most power.I'm sorry for the lots of edits. I just felt like there's some explaining to do there!

yomemimo.com

Kerjakan soal, tugas, & PR sekolah semakin mudah

Which of the following would produce the most power? A.

Jawaban dan Penjelasan

Kerjakan soal, tugas, & PR sekolah semakin mudah

Which of the following would produce the most power? A.

Jawaban dan Penjelasan

Video Tutorial Android dan Smartphone

Pertanyaan Lain Mata pelajaran Fisika