A shopper at the local grocery store exerts a net force of 9.8 N on a 4-kg shopping cart for 3.3 seconds. (a) According to Newton's 2nd Law, Σ F = ma, what is the acceleration of the shopping cart? a = ______ m/s2 (b) We learned in our discussion of motion that the acceleration of an object measures how the speed changes with respect to time, a = vf - vi t Using the acceleration found in part (a), the time given, and the fact that the cart starts from rest (vi = 0 m/s), determine the final speed of the shopping cart. Hint: In the expression for acceleration above, if you multiply both sides of the equation by the time, you can solve for vf. More specifically, a t = vf - vi vf = ______ m/s.

A shopper at the local grocery store exerts a net force of 9.8 N on a 4-kg shopping cart for 3.3 seconds. (a) According to Newton's 2nd Law, Σ F = ma, what is the acceleration of the shopping cart? a = m/s2 (b) We learned in our discussion of motion that the acceleration of an object measures how the speed changes with respect to time, a = vf - vi t Using the acceleration found in part (a), the time given, and the fact that the cart starts from rest (vi = 0 m/s), determine the final speed of the shopping cart. Hint: In the expression for acceleration above, if you multiply both sides of the equation by the time, you can solve for vf. More specifically, a t = vf - vi vf = m/s.

Name: Remember to keep 3 digits in your answers below.A shopper at the local
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Description: Remember to keep 3 digits in your answers below.A shopper at the local grocery store exerts a net force of 9.8 N on a 4-kg shopping cart for 3.3 seconds.(a) According to Newton's 2nd Law, Σ F = ma, what is the acceleration of the shopping cart?a = __

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter4: Forces In One Dimension

Section: Chapter Questions

Problem 66A

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