A shopper in a supermarket pushes a loaded cart with a horizontal force of 8 N. The cart has a mass of 26 kg. (a) How far will it move in 7.0 s, starting from rest? (Ignore friction.) m (b) How far will it move in 7.0 s if the shopper places his 30 N child in the cart before he begins to push it?

A shopper in a supermarket pushes a loaded cart with a horizontal force of 8 N. The cart has a mass of 26 kg. (a) How far will it move in 7.0 s, starting from rest? (Ignore friction.) m (b) How far will it move in 7.0 s if the shopper places his 30 N child in the cart before he begins to push it?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter9: Linear Momentum And Collisions

Section: Chapter Questions

Problem 41P: Two figure skaters are coasting in the same direction, with the leading skater moving at 5.5 m/s and...

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Concept explainers

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.

Question

A shopper in a supermarket pushes a loaded cart with a horizontal force of 8 N. The cart has a mass of 26 kg.

(a) How far will it move in 7.0 s, starting from rest? (Ignore friction.)
m

(b) How far will it move in 7.0 s if the shopper places his 30 N child in the cart before he begins to push it?

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