1. A body has a constant acceleration of 5 m/s2 and initial speed of -10m/s. and a time of travel of 4 s. Calculate the total distance covered. 2. a) Calculate the work done on a 1500-kg elevator car by its cable to lift it 40.0 m at constant speed, assuming friction averages 100 N. (b) What is the work done on the lift by the gravitational force in this process? (c) What is the total work done on the lift?
1. A body has a constant acceleration of 5 m/s2 and initial speed of -10m/s. and a time of travel of 4 s. Calculate the total distance covered. 2. a) Calculate the work done on a 1500-kg elevator car by its cable to lift it 40.0 m at constant speed, assuming friction averages 100 N. (b) What is the work done on the lift by the gravitational force in this process? (c) What is the total work done on the lift?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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1. A body has a constant acceleration of 5 m/s2 and initial speed of -10m/s. and a time of travel of 4 s. Calculate the total distance covered.
2. a) Calculate the work done on a 1500-kg elevator car by its cable to lift it 40.0 m at constant speed, assuming friction averages 100 N.
(b) What is the work done on the lift by the gravitational force in this process?
(c) What is the total work done on the lift?
Please find attached questions: 28,54,55,62.
Your help will be appreciated.
Thank you.
Aisha.
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