a) a father pulls his child on a sled by pulling on a rope which is 30 degrees with the horizontal, over his shoulder with a force of 50N. Using the coefficient of friction for steel on ice, calculate the acceleration of the sled if its mass plus the child's is 20kg, assuming that the sled is already in motion. b) what minimum force must the father exert to start the sled moving from rest? (coefficient of kinetic friction= 0.02 , coefficient of static friction= 0.4

a) a father pulls his child on a sled by pulling on a rope which is 30 degrees with the horizontal, over his shoulder with a force of 50N. Using the coefficient of friction for steel on ice, calculate the acceleration of the sled if its mass plus the child's is 20kg, assuming that the sled is already in motion. b) what minimum force must the father exert to start the sled moving from rest? (coefficient of kinetic friction= 0.02 , coefficient of static friction= 0.4

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 65P: Consider the baby being weighed in the following figure. (a) What is the mass of the infant and...

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