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PHYS 031 Lecture Notes - Net Force

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School
University of Vermont
Department
Physics
Course
PHYS 031
Professor
Jie Yang

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Document Summary

Chapter 7: newton s third law: two cars have equal masses. Car b is stopped and car a runs into the back of car b. Car b exerts the same amount of force on car a as a exerts on b: all 3 50 kg blocks are at rest. The tension is equal: this pulley is set on this frictionless table. The tension is less than the weight of block b: a small car is pushing a larger truck. The mass of the truck is greater than the mass of the car. The car exerts the same amount of force on the truck as the truck exerts on the car. Example #1: boxes a and b are sliding to the right across a frictionless table. The mass of a is larger than the mass of b. Rank in order, from largest to smallest, the horizontal forces on a, b, and h.

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

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Related Questions

A block of mass M slides horizontally across a frictionaless tableas it is pulled (via a massless string stretched over a masslesspulley) by a weight of mass m.

A) which are true?
a- the string tension is equal to the weight of mass m
b- the string tension is independent of the masses
c-the string tension is less than the weight of mass m
d- the string tension is greater than the weight of mass m
e- as the block accelerate, the string tension increases

B) if the two masses are equal, which of the following aretrue?
a)the blocks do not move
b) the string tension goes to zero
c) both blocks accelerate at g
d)both blocks accelerate at 2g
e)both blocks accelerate at g/2

I know for number 5 A is not a and B is not c
help? any explanation why would help too

For the woman being pulled forward on the toboggan in Figure 4.33, is the magnitude of the normal force exerted by the ground on the toboggan (a) equal to the total weight of the woman plus the toboggan, (b) greater than the total weight, (c) less than the total weight, or (d) possibly greater than or less than the total weight, depending on the size of the weight relative to the tension in the rope? 

For the woman being pulled forward on the toboggan, is the magnitude of the normal force exerted by the ground on the toboggan

(a) equal to the total weight of the woman plus the toboggan,

(b) greater than the total weight,

(c) less than the total weight, or

(d) possibly greater than or less than the total weight, depending on the size of the weight relative to the tension in the rope?