Practice: How much power must an elevator motor supply in order to lift a 1000 kg elevator at constant speed a height of 100m in 50 seconds?
Subjects
All Chapters | ||||
---|---|---|---|---|
Ch 01: Intro to Physics; Units | 1hr & 22mins | 0% complete | ||
Ch 02: 1D Motion / Kinematics | 4hrs & 2mins | 0% complete | ||
Ch 03: Vectors | 2hrs & 43mins | 0% complete | ||
Ch 04: 2D Kinematics | 2hrs | 0% complete | ||
Ch 05: Projectile Motion | 2hrs & 57mins | 0% complete | ||
Ch 06: Intro to Forces (Dynamics) | 3hrs & 20mins | 0% complete | ||
Ch 07: Friction, Inclines, Systems | 2hrs & 43mins | 0% complete | ||
Ch 08: Centripetal Forces & Gravitation | 3hrs & 43mins | 0% complete | ||
Ch 09: Work & Energy | 1hr & 58mins | 0% complete | ||
Ch 10: Conservation of Energy | 2hrs & 54mins | 0% complete | ||
Ch 11: Momentum & Impulse | 3hrs & 45mins | 0% complete | ||
Ch 12: Rotational Kinematics | 3hrs & 3mins | 0% complete | ||
Ch 13: Rotational Inertia & Energy | 7hrs & 4mins | 0% complete | ||
Ch 14: Torque & Rotational Dynamics | 2hrs & 10mins | 0% complete | ||
Ch 15: Rotational Equilibrium | 4hrs & 8mins | 0% complete | ||
Ch 16: Angular Momentum | 3hrs & 6mins | 0% complete | ||
Ch 17: Periodic Motion | 2hrs & 9mins | 0% complete | ||
Ch 19: Waves & Sound | 3hrs & 25mins | 0% complete | ||
Ch 20: Fluid Mechanics | 4hrs & 31mins | 0% complete | ||
Ch 21: Heat and Temperature | 3hrs & 15mins | 0% complete | ||
Ch 22: Kinetic Theory of Ideal Gases | 1hr & 44mins | 0% complete | ||
Ch 23: The First Law of Thermodynamics | 1hr & 26mins | 0% complete | ||
Ch 24: The Second Law of Thermodynamics | 3hrs & 9mins | 0% complete | ||
Ch 25: Electric Force & Field; Gauss' Law | 3hrs & 34mins | 0% complete | ||
Ch 26: Electric Potential | 1hr & 53mins | 0% complete | ||
Ch 27: Capacitors & Dielectrics | 2hrs & 2mins | 0% complete | ||
Ch 28: Resistors & DC Circuits | 3hrs & 7mins | 0% complete | ||
Ch 29: Magnetic Fields and Forces | 2hrs & 27mins | 0% complete | ||
Ch 30: Sources of Magnetic Field | 2hrs & 30mins | 0% complete | ||
Ch 31: Induction and Inductance | 3hrs & 38mins | 0% complete | ||
Ch 32: Alternating Current | 2hrs & 37mins | 0% complete | ||
Ch 33: Electromagnetic Waves | 2hrs & 6mins | 0% complete | ||
Ch 34: Geometric Optics | 2hrs & 51mins | 0% complete | ||
Ch 35: Wave Optics | 1hr & 15mins | 0% complete | ||
Ch 37: Special Relativity | 2hrs & 10mins | 0% complete | ||
Ch 38: Particle-Wave Duality | Not available yet | |||
Ch 39: Atomic Structure | Not available yet | |||
Ch 40: Nuclear Physics | Not available yet | |||
Ch 41: Quantum Mechanics | Not available yet |
Sections | |||
---|---|---|---|
Intro to Energy & Kinetic Energy | 6 mins | 0 completed | Learn |
Intro to Calculating Work | 27 mins | 0 completed | Learn |
Net Work & Work-Energy Theorem | 26 mins | 0 completed | Learn |
Work On Inclined Planes | 17 mins | 0 completed | Learn |
Work By Springs | 16 mins | 0 completed | Learn |
Work As Area Under F-x Graphs | 8 mins | 0 completed | Learn |
Power | 19 mins | 0 completed | Learn |
Concept #1: Power
Practice: How much power must an elevator motor supply in order to lift a 1000 kg elevator at constant speed a height of 100m in 50 seconds?
Example #1: Power of Pushing a Box
Example #2: Power of a Winch on an Incline
Join thousands of students and gain free access to 55 hours of Physics videos that follow the topics your textbook covers.
Enter your friends' email addresses to invite them: