Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Physics Expert

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?

Physics, Academics

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

Have any Question? 


Related Questions in Physics

Newtons second law of motionpurpose - to determine the

Newton's Second Law of Motion Purpose - To determine the relationship between net force, mass, and acceleration and to use vector addition to determine the net force on an object. Discussion 1. In the situation with a co ...

A life preserver is manufactured to support a

A life preserver is manufactured to support a 76 kgperson with 25 %of his volume out of the water. If the density of the life preserver is 100 kg/m3 and it is completely submerged, what must its volume be? Assume that th ...

Describe an arithmetic coding algorithm to encode random

Describe an arithmetic coding algorithm to encode random bit strings of length N and weight K (i.e., K ones and N -K zeroes) where N and K are given. For the case N =5, K =2, show in detail the intervals corresponding to ...

Make a version of the k-means algorithm that models the

Make a version of the K-means algorithm that models the data as a mixture of K arbitrary Gaussians, i.e., Gaussians that are not constrained to be axis-aligned.

Two identical gas cylinders one contains the diatomic gas

Two identical gas cylinders. One contains the diatomic gas nitrogen (N 2 ), and the other contains an equal mass of the diatomic gas oxygen (O 2 ). The pressures in the cylinders are the same, but the temperatures are di ...

Imagine fitting a mixture of ten gaussians to data in a

Imagine fitting a mixture of ten Gaussians to data in a twenty-dimensional space. Estimate the computational cost of implementing inferences for this model by enumeration of a grid of parameter values.

Sio2nbspclusters are found to be excellent sink for

SiO 2  clusters are found to be excellent sink for metallic impurities in Si crystals. Experiments have shown that SiO 2 clusters can be formed inside Si owing to oxygen precipitation at defect (dangling bond) sites Curi ...

What is the magnitude of the temperature

What is the magnitude of the temperature change |ΔT|= 12.6 K in degrees Fahrenheit?

Prove that detailed balance implies invariance of the

Prove that detailed balance implies invariance of the distribution P(x) under the Markov chain T. Proving that detailed balance holds is often a key step when proving that a Markov chain Monte Carlo simulation will conve ...

1 sketch to scale the longitudinal and transverse

1. Sketch to scale the longitudinal and transverse displacement waves on a monoatomic one-dimensional lattice at a wavelength of λ-4a. Locate the vibration frequency of these two acoustical modes on the ω q  -q diagram s ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

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.

Ask Now Help with Problems, Get a Best Answer

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

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen