Mechanical Engineering Answers

As ahown in the figure find that at what distance body A will attain a velocity of 3 m/s.when starts from the rest.Asaume coefficient of friction is 0.2for blocks and surface and pulleys are weightless and frictionless

A steel ball with a mass of 0.5 kg and a radius of 10 mm is dropped from a height of 3 m and strikes a homogeneous sheet with a thickness of 1200 mm which is located on a rigid bed. Calculate the maximum penetration, maximum contact force and maximum contact radius in the following three cases. (Assume a modulus of elasticity of 200 GPa, a yield stress of 250 MPa, and a Poisson's ratio of 0.3 if required.)

A) Rigid ball and Linear Elastic plate

B) Rigid ball and rigid-Perfectly Plastic plate

C) Rigid ball and Linear Elastic-Perfectly Plastic

find that at what distance body A will attain a velocity of 3 m/s when starts from rest. Assume coefficient of friction as 0.2 for block and surface and pulleys are frictionless and weightless

A metal cube(faces 20 mm+-0.1mm) fully sinks into a glass full of water. The diameter of the glass is 60 mm+-0,2 mm.Calculate the water rise level and its cumulative error.

A metal cube(faces 20 mm+-0.1mm) fully sinks into a glass full of water. The diameter of the glass is 60 mm+-0,2 mm.Calculate the water rise level and its cumulative error.

a metal cube(faces 20 mm=0.1mm) fully sinks into a glass full of water. the diameter of the glass is 60 mm=0,2 mm.calculate the water rise level and its cumulative error.

explain various types of wood joints with neat diagram

As shown in figure,find that at what distance body A will retain a velocity of 3m/s when starts from rest.assume coefficient of friction as 0.2 for block and surface and pulleye are frictionless

As shown in figure, find that at what distance body A will attain a velocity of 3 m/s when starts from rest. Assume coefficient of friction as 0.2 for block and surface and pulleys are frictionless and weightless

Air is heated in a 4cm×4cm sheet metal duct with a uniform surface

heat flux of 590 W/m2. The mean velocity is 3.2 m/s. The sheet

metal has an average roughness 0.05 mm. If the air enters at 20 ºC

and leaves at a mean temperature of 120 ºC, determine the following

(ignore entrance effects):

[a] The required length of the duct.

[b] The maximum surface temperature.