Hulky and Bulky challenge each other to race up a flight of stairs (Ah = 4.0 m). Hulky, whose mass is 120 kg, makes the climb in 3.0 s; while Bulky, 150 kg, took 4.0 s to make the climb. Who has more Eg at the top? Explain: Who was more powerful?
Added by Alicia R.
Step 1
First, we need to calculate the gravitational potential energy (Eg) for both Hulky and Bulky at the top of the stairs. The formula for gravitational potential energy is: Eg = m * g * h where m is the mass, g is the acceleration due to gravity (approximately 9.8 Show more…
Show all steps
Close
Your feedback will help us improve your experience
Adi S and 56 other Physics 101 Mechanics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
You can carry a 50 N weight up a flight of stairs that is 3 m high in 10 s. Then you carry 40 N up two flights of stairs in 20 s. Finally, you carry 30 N up three flights in 45 s. Is the job that took the most power the same as the job that took the most energy? Explain.
Adi S.
A 50 kg person who walks up a flight of stairs 4 m high in 30 s has how much power?
Sri K.
A man whose mass is 50 kg climbs up 30 steps of a stair in 30 s. If each step is 20 cm high, calculate the power used in climbing the stairs. [Given g = 10 m/s2]
Jaya M.
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD