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# the 65.0-kg ice skater being pushed by two others shown in ISBN: 9780130606204 3

## Solution for problem 7PE Chapter 5

Physics: Principles with Applications | 6th Edition

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Problem 7PE

the 65.0-kg ice skater being pushed by two others shown in Figure 5.21. (a) Find the direction and magnitude of Ftot , the total force exerted on her by the others, given that the magnitudes F1 and F2 are 26.4 N and 18.6 N, respectively. (b) What is her initial acceleration if she is initially stationary and wearing steel-bladed skates that point in the direction of Ftot ? (c) What is her acceleration assuming she is already moving in the direction of Ftot ? (Remember that friction always acts in the direction opposite that of motion or attempted motion between surfaces in contact.)

Step-by-Step Solution:

Step-by-step solution Step 1 of 7 (the diredction of the force net) (acceleration after start to move) (the acceleration at the moment of start) Step 2 of 7 a) The net force acting on the object. Step 3 of 7 the angle made by the total force is: Step 4 of 7 (b) The normal force applied to the skater from the grounmd;

Step 5 of 7

Step 6 of 7

##### ISBN: 9780130606204

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