Answered: A contestant in a winter games event…

A contestant in a winter games event pushes a 52.0 kg block of ice across a frozen lake as shown in Figure 4.29(a). The coef s 0.1 and the coefficient of kinetic friction is 0.03. 25°

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter5: Displacement And Force In Two Dimensions

Section5.2: Friction

Problem 19PP

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Question

MY NOTES
ASK YOUR TEACHER
PRACTICE ANOTHER
A contestant in a winter games event pushes a 52.0 kg block of ice across a frozen lake as shown in Figure 4.29(a). The coefficient of static friction
is 0.1 and the coefficient of kinetic friction is 0.03.
25°
(a)
25
(b)
Figure 4.29
(a) Calculate the minimum force F he must exert to get the block moving.
(b) What is its acceleration once it starts to move, if that force is maintained?
m/s2
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