The potential energy of a person is 980 Joule who climbs a flight with stairs 10 mQuestion345high at constant speed, then it mass is equal(a) 5 kg(b) 10 kg(c) 20 kg(d)30 kgQoestion35The total mechanical energy of a body in an isolated system and involvesconservative force is conserved.(a) True(b) FalseOueston36(a) 400 JouleWhat is gravitational potential energy of a 5 Kg book 10 m above the floor?(b) 490 Joule(c) 600 Joule(4)690 JouleQuestion37If the momentum p=2t+ 4t-3 kg.m/s, find the force F att-1 sec.(a)8 N(b) 10N(c) 12 N(d) 14 NQuestion38The magitude of the net force acting on the object in the figure is...(c) 7N(d) 8N(a) 5 N(b) 6 NQuestionTwo masses are suspended by a cord as shown in the figure below. If39:mi = 5 kg, and m2 =15 kg. Find the acceleration of the mass m2?(c) 8.9 m/s(d) 99 m/s(b) | 7.9 m/s(a) 4.9 m/s....is the rate at which work is done.Question(d) Force40(c) Work(b) Energy(a) | Power

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Question The potential energy of a person is 980 Joule who climbs a flight with stairs 10m high at constant speed, then it mass is equal ....*. (a) 5 kg (b) 10 kg 30 kg (c) 20 kg (d) Qoestion The total mechanical

Question The potential energy of a person is 980 Joule who climbs a flight with stairs 10m high at constant speed, then it mass is equal ....*. (a) 5 kg (b) 10 kg 30 kg (c) 20 kg (d) Qoestion The total mechanical

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter8: Potential Energy And Conservation Of Energy

Section: Chapter Questions

Problem 81AP: Repeat the preceding problem, but this time, suppose that the work done by air resistance cannot be...

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