Consider the 65.0-kg ice skater being pushed by two others shown in the figure below. (a) Find the direction (in degrees counterclockwise from the +x-axis) and magnitude (in N) of F the total force exerted on her by the others, given that the magnitudes F, and F2 are 20.0 N and 15.4 N, respectively. (Assume F, points in the positive x direction.) magnitude • counterclockwise from the +x-axis direction (b) What is her initial acceleration (in m/s2) if she is initially stationary and wearing steel-bladed skates that point in the direction of F? (Assume friction is negligible. Enter the magnitude only.) m/s2 (c) What is her acceleration (in m/s2) assuming she is already moving in the direction of F? (Assume friction is negligible. Enter the magnitude only.) m/s2

Consider the 65.0-kg ice skater being pushed by two others shown in the figure below. (a) Find the direction (in degrees counterclockwise from the +x-axis) and magnitude (in N) of F the total force exerted on her by the others, given that the magnitudes F, and F2 are 20.0 N and 15.4 N, respectively. (Assume F, points in the positive x direction.) magnitude • counterclockwise from the +x-axis direction (b) What is her initial acceleration (in m/s2) if she is initially stationary and wearing steel-bladed skates that point in the direction of F? (Assume friction is negligible. Enter the magnitude only.) m/s2 (c) What is her acceleration (in m/s2) assuming she is already moving in the direction of F? (Assume friction is negligible. Enter the magnitude only.) m/s2

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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Concept explainers

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”

Question

Consider the 65.0-kg ice skater being pushed by two others shown in the figure
below.
(a) Find the direction (in degrees counterclockwise from the +x-axis) and
magnitude (in N) of F the total force exerted on her by the others, given
that the magnitudes F, and F2 are 20.0 N and 15.4 N, respectively. (Assume
F, points in the positive x direction.)
magnitude
• counterclockwise from the +x-axis
direction
(b) What is her initial acceleration (in m/s2) if she is initially stationary and
wearing steel-bladed skates that point in the direction of F? (Assume friction
is negligible. Enter the magnitude only.)
m/s2
(c) What is her acceleration (in m/s2) assuming she is already moving in the
direction of F? (Assume friction is negligible. Enter the magnitude only.)
m/s2

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