1.A dockworker loading crates on a ship finds that a 225 kg crate, initially at rest on a horizontal surface, requires a 600 N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 550 N is required to keep it moving with a constant speed. Find the coefficients of static and kinetic friction between crate and floor.(a) the coefficient of static friction = and (b) the coefficient of kinetic friction = 2. A block with mass m1 = 4.00 kg and a ball with mass m2 = 8.00 kg are connected by a light string that passes over a frictionless pulley, as shown in Figure. Find the acceleration of the two objects and the tension in the string. Also calculate the distance each object will move in the first second of motion if both objects start from rest. (a) the acceleration of the two objects = m/s2(b) the Tension in the string = N(c) distance each object will move in the first second of motion = m moadle.nct.edu.ome-Learning PortalCourses -Reportse-Services -Academic Departments1.A dockworker loading crates on a ship finds that a 225 kg crate, initially at reston a horizontal surface, requires a 600 N horizontal force to set it inmotion. However, after the crate is in motion, a horizontal force of 550 N isrequired to keep it moving with a constant speed. Find the coefficients of staticand kinetic friction between crate and floor.on(a) the coefficient of statifriction =and(b) the coefficient of kinetic friction =(2 marks)2. A block with mass m, = 4.00 kg and a ball with mass m2 = 8.00 kg areconnected by a light string that passes over a frictionless pulley, as shown inFigure. Find the acceleration of the two objects and the tension in the string.Also calculate the distance each object will move in the first second of motion ifboth objects start from rest.m,(a) the acceleration of the two objects =m/s2(b) the Tension in the string =(c) distance each object will move in the first second of motion =(5 marks)n261. Two positive point charges (g1, and g2) are separated at a distance of 75nm.

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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 dockworker loading crates on a ship finds that a 225 kg crate, initially at rest on a horizontal surface, requires a 600 N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 550 N is required to keep it moving with a constant speed. Find the coefficients of static and kinetic friction between crate and floor. (a) the coefficient of static friction = and (b) the coefficient of kinetic friction = 2. A block with mass m1 = 4.00 kg and a ball with mass m2 = 8.00 kg are connected by a light string that passes over a frictionless pulley, as shown in Figure. Find the acceleration of the two objects and the tension in the string. Also calculate the distance each object will move in the first second of motion if both objects start from rest. (a) the acceleration of the two objects = m/s2 (b) the Tension in the string = N (c) distance each object will move in the first second of motion = m

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1.A dockworker loading crates on a ship finds that a 225 kg crate, initially at rest
on a horizontal surface, requires a 600 N horizontal force to set it in
motion. However, after the crate is in motion, a horizontal force of 550 N is
required to keep it moving with a constant speed. Find the coefficients of static
and kinetic friction between crate and floor.
on
(a) the coefficient of stati
friction =
and
(b) the coefficient of kinetic friction =
(2 marks)
2. A block with mass m, = 4.00 kg and a ball with mass m2 = 8.00 kg are
connected by a light string that passes over a frictionless pulley, as shown in
Figure. Find the acceleration of the two objects and the tension in the string.
Also calculate the distance each object will move in the first second of motion if
both objects start from rest.
m,
(a) the acceleration of the two objects =
m/s2
(b) the Tension in the string =
(c) distance each object will move in the first second of motion =
(5 marks)
n26
1. Two positive point charges (g1, and g2) are separated at a distance of 75nm.

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