Evaluate velocity of the block, Mechanical Engineering

Evaluate velocity of the block:

A block of 2500N rest on horizontal surface. The coefficient of friction in between block and plane is 0.3. The block can be pulled by the force of 1000N acting at 30º angle to the horizontal. Find out the velocity of the block after it moves over the distance of 30m, starting from the rest.

 

716_Evaluate Force to slide the body over the surface.png

Here ∑V = 0 but  ∑H≠ 0, As   ∑H is converted into ma

∑V = 0

R + 1000sin30° - W = 0, W = 2500N

R = 2000N                                                                                                                 ...(i)

∑H≠   0

∑H = µR - 1000cos30° = 266.02N                                                                    ...(ii)

As ∑H≠ 0

By the newtons third law of motion

F = ma

266.02 = (2500/g) × (v2  - u2)/2.s => v2 = u2 + 2as

u = 0, v2 = {266.02 × 2 × s × g}/2500

v2   = {266.02 × 2 × 30 × 9.71}/2500

v = 7.91m/sec                                                   .......ANS

Posted Date: 10/17/2012 6:48:46 AM | Location : United States







Related Discussions:- Evaluate velocity of the block, Assignment Help, Ask Question on Evaluate velocity of the block, Get Answer, Expert's Help, Evaluate velocity of the block Discussions

Write discussion on Evaluate velocity of the block
Your posts are moderated
Related Questions
Heat Dissipation : During clutch application, large amount of heat is generated. The rubbing surfaces should have sufficient area and mass to absorb the generated heat. The proper

write a notes of system of forces and classified it a/c to orintenssion of forces

Explain the Laws of Thermodynamics Usually thermodynamics contains four laws; a. Zeroth law:  this law deals with thermal equilibrium and establishes an idea of temperature.


Once the total volume of an individual vessel has been established the detailed dimensions or mechanical design can be performed. Much of this is based on "Rules of Thumb"  built f

ULTRASONIC WELDING This is a solid state welding process for joining similar or dissimilar metals by application of high frequency vibratory energy to work pieces held togethe

what is gear kinematics


can you explain about merchant circle,cutting forces

sir/madam, i would like to teach online how can i have to proceed