Find velocity of the vehicle, Mechanical Engineering

Assignment Help:

Find velocity of the vehicle:

A car having mass 400kg is moving with velocity of 20m/sec. A force of 200N that acts on it for 2 mins. Find velocity of the vehicle:

(1) When force acts in the direction of motion.

(2) When force acts in the opposite direction of motion.

 

Sol :

m = 400Kg, u = 20m/sec, F = 200N, t = 2min = 120sec, v =?

As                F = ma

200 = 400 X a

a=0.5m/sec2                                                                                                     ...(i)

(1) Velocity of car after 120sec, When force acts in the direction of motion.

v = u + at

= 20 + 0.5 X 120

v = 80m/sec                                                                           ........ANS

(2) Velocity of car after 120sec, when force acts in opposite direction of motion.
v = u - at

= 20 - 0.5 X 120

v = -40m/sec                                                    .......ANS

Negative sign indicate that body is moving in the reverse direction


Related Discussions:- Find velocity of the vehicle

American welding society (aws), As per American welding society (AWS) W...

As per American welding society (AWS) Welding is defined as "a localized coalescence of metals or non-metals produced either by heating the material to suitable temperature, wi

Theory of mechanics , analyze a six bar linkage to get the position, veloci...

analyze a six bar linkage to get the position, velocity and acceleration

Proell governor., how to solve numerical of proell governor

how to solve numerical of proell governor

Sewage treatment, Q. Sewage Treatment? Unless located in a metropolitan...

Q. Sewage Treatment? Unless located in a metropolitan area, it is common for plants to have sewage treatment facilities for disposal of sewage and grey water generated in the p

Calculate the fraction of the volume floats, (Buoyancy of a floating body) ...

(Buoyancy of a floating body) Ice has a density 91.7% of liquid water. For an ice cube (1 cm per side), a) what fraction of the volume floats above the water surface at sta

Logistics - inbound and outbound, Logistics - Inbound and Outbound: Lo...

Logistics - Inbound and Outbound: Logistics plays a vital role in designing and shaping of SCM in a firm. Without an effective logistics system the effectiveness of the firms

Compute the maximum efficiency of the solar cell, The main objective is to ...

The main objective is to compute the maximum efficiency of the solar cell panels, produce hydrogen and estimate the hydrogen production rate using solar cells and electrolyzer and

Defects involving inadequate bonding, Defects Involving Inadequate Bonding ...

Defects Involving Inadequate Bonding Lack of fusion Involves lack of complete melting and fusion of some portion of the weld metal in a joint. It may occur either bet

Reasons of attribution of raft foundations by rigid method, What are the re...

What are the reasons of attribution of raft foundations by rigid method? The overdesign of raft foundations by rigid method can be attributed to three major reasons: a. Ther

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd