+1-415-315-9853

info@mywordsolution.com

 Algebra Math Calculus Physics Chemistry Biology Earth Science Physiology History Humanities English Sociology Nursing Science

problem 1: A sled reaches the bottom of a hill where it slows from 18.0m/s to a stop in 25 m. Find out the force of friction if the sled has a mass of 75 kg?

problem 2: Two dogs are fighting over a bone. The first dog pulls with 200 N at 25º N of W and the second dog pulls with 185 N at 40º N of E. If the bone has a mass of 15 kg, determine its acceleration?

problem 3: A child is pulling their “little Red Wagon” all along a level sidewalk; they exert a force of 120 N via the handle that is angled at 12º above the horizontal. If friction resists with a force 45N, find out the acceleration of the 15 kg wagon?

problem 4:

a) A 2500 kg truck is rolling down an 18º hill. The force of friction is 6000 N; determine the acceleration of the truck?
b) If it begins from rest how fast will it be going after 50m?

problem 5: Slaves are building a pyramid in Egypt, to do this they pull 5000 kg blocks up a 10º incline at a constant velocity if the tension in the ropes they use is 10000 N, determine the force of friction?

problem 6: A lawn mower is pushed from rest to 2.5m/s in 4.0 m. Determine the work done if the mower has a mass of 30 kg?

problem 7:

a) In a soap box derby, racers have a rolling start (v = 2.5m/s) at the top of a 55.0 m high hill. What will their speed be at the bottom of the hill?

b) If the brakes of the racer apply a force 80 N to the 45 kg cart, how long will it take to slow down to 5.0m/s?

• Category:- Physics
• Reference No.:- M92775

Have any Question?

## Related Questions in Physics

### 1 a find dydx given that x2 y2 - 4x 7y 15b under what

1. (a) Find dy/dx given that x 2 + y 2 - 4x + 7y = 15. (b) Under what conditions on x and/or y is the tangent line to this curve horizontal? Vertical? 2. (a) Find the slope of the tangent line to the ellipse (b) Are ther ...

### I am just starting learning quantum physics and i am

I am just starting learning quantum physics , and I am starting from old quantum theories from black body radiation , but I am getting in trouble to understand Planck law derivation I am too confused about that derivatio ...

### Starting with the einstein relationship derive the

Starting with the Einstein relationship, derive the Boltzmann relationship for the equilibrium electron concentration, N(x)-N(x 1 )exp{q[V(x)-V(x 1 ))/kT]. Is this result consistent with the fact negatively charged elect ...

### Assume that a sequence of symbols from the ensemble x

Assume that a sequence of symbols from the ensemble X introduced at the beginning of this chapter is compressed using the code C 3 . Imagine picking one bit at random from the binary encoded sequence c = c(x 1 )c(x 2 )c( ...

### Consider a one-dimensional random walk on each step of

Consider a one-dimensional random walk, on each step of which the state moves randomly to the left or to the right with equal probability. Show that after T steps of size , the state is likely to have moved only a distan ...

### Helium-3 he3 has potential to be used as fuel in future

Helium-3 (He3) has potential to be used as fuel in future nuclear fusion power plants. It would produce a clean fusion process, leaving little of the radioactive waste that plagues nuclear fission. But Helium-3 is found ...

### Sketch the posterior probability ppa saba f 3 what is the

Sketch the posterior probability P(pa | s=aba, F =3). What is the most probable value of pa (i.e., the value that maximizes the posterior probability density)? What is the mean value of pa under this distribution?

### According to car and driver an alfa romeo going at 70 mph

According to Car and Driver, an Alfa Romeo going at 70 mph requires 177 feet to stop. Assuming that the stopping distance is proportional to the square of velocity, find the stopping distances required by an Alfa Romeo g ...

### Sociology is not simply a neutral method making it possible

Sociology is not simply a neutral method making it possible to develop an instrumental knowledge about society; it is part of society. According to the argument laid out in the lecture, in what sense can sociological the ...

### Determine the schmidt number fora oxygen in air at 300 k

Determine the Schmidt number for (a) oxygen in air at 300 K and 1.0 atm; and (b) oxygen in liquid water at 300 K. At 300 K, the diffusion coefficient of oxygen in liquid water is 1:5 × 10 -9  m 2 /s.

• 13,132 Experts

## Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

### WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

### Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

### Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

### Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

### Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro