Gravitational acceleration

Assignment Help Mechanical Engineering
Reference no: EM13709577

If an elevator starting from rest accelerates at 10 m/s^2 and then decelerates at -1 m/s^2 until it reaches the top floor at 100m, calculate the shortest time it takes for it to reach the top floor (ignore gravitational acceleration, assume g=0). plot the corresponding a-t, v-t and s-t graphs

Reference no: EM13709577

Questions Cloud

Calculate the power output of the turbine : Steam enters a turbine at a pressure of 16 MPa, temperature of 560°C, speed of 150 m/s, and a height of 3.5 m above ground. At the turbine exit, temperature is 45°C, the steam is saturated with 95% quality, the speed is 15 m/s, and the height is 0.8 ..
Determine the work and heat transfer for each process : A piston-cylinder assembly contains 2 lbm of water, initially at 100 lbf/in.2 and 400o F. The water undergoes two processes in series: a constant pressure process followed by a constant volume process. At the end of the constant volume process, the t..
Identify the surroundings and boundary : A bottle of soda is capped when the pressure of carbonation is 0.20 MPa. How long before the pressure has dropped to 0.11 MPa? Identify the surroundings and boundary. List all of the interactions. Physically and mathematically Include all heat transf..
Determine final pressure and volume of the water : 3.33 kg of water fills a weighted piston cylinder device, at a temperature of 400 deg. C, The piston cylinder device now is cooled until is temperature is 170 deg C. Determine final pressure and volume of the water
Gravitational acceleration : If an elevator starting from rest accelerates at 10 m/s^2 and then decelerates at -1 m/s^2 until it reaches the top floor at 100m, calculate the shortest time it takes for it to reach the top floor (ignore gravitational acceleration, assume g=0). plo..
Propane undergoes a throttling process : Propane vapor enters a valve at 1.0 MPa, 60°C, and leaves at 0.3 MPa. If the propane undergoes a throttling process, what is the temperature of the propane leaving the valve, in °C?
Calculate the specific removal rate and mrr of nickel : Calculate the specific removal rate and MRR (Volume of metal removed/sec) of Nickel in a certain electro chemical dissolution process, when a current of 500 A is being passed through the cell. Assume current efficiency = 100%.
Find fluids specific weight, density : A container holds .07m^3 of hydraulic fluid with a specific gravity of .9. find fluids specific weight, density, and weight.
Premature rate of failure on the road : A tire company has determined that its tires have a 1% premature rate of failure on the road. What is the chance that none of the 16 tires shipped to a retailer will have a premature failure?

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Calculate the work done when a gas expands from 350 kpa and

during some actual expansion and compression processes in piston-cylinder devices the gases have been observed to

  What is the minimum required length of the rod so that one

a high strength steel drill rod used for boring a hole in the earth has a diameter of 0.5 in. the allowable shear

  Determine radial and tangential stresses as functions of r

two hollow metal cylinders are to be press-fitted together. the outer steel member has outer and inner diameters of

  The activation energy for creep is 140 kjmol calculate the

the steady-state creep rates at 473 k for any alloy are 2.510-3 h-1 at 55 mpa and 2.410-2 h-1 at 69 mpa. the activation

  Estimate the required hp to operate the compressor

An air compressor takes air from outdoors at 28deg C and 101.2kPa and compresses it to 790kPa and 50 deg C. The air input to the compressor is found to be 22.67m3/hr. Estimate the required Hp to operate the compressor.

  Neglecting any resistance to the motion of the plateform

a 175lb man initially at rest at a on a floating platform starts walking to the right with a constant speed vo3 fts

  Wat types of engineers eg civil construction mechanical

1. what types of engineers e.g. civil construction mechanical industrial material science electrical etc. do you think

  Determine the force of the rod on the particle and the

the particle has a mass of 0.5 kg and is confined to move along the smooth horizontal slot due to the rotation of the

  Design a process to produce a 05 cm-diameter steel shaft

design a process to produce a 0.5 cm-diameter steel shaft having excellent toughness yet excellent wear and fatigue

  Estimate the temperature at which the top land very top of

estimate the temperature at which the top land very top of the piston would be touching the liner that is kept at a

  The inlet to a boiler of a carnot power cycle is at 5 mpa

the inlet to a boiler of a carnot power cycle is at 5 mpa saturated liquid and the exit is saturated vapor. the

  Torsion spring to inverted pendulum

If you attach torsion spring to inverted pendulum, is this the equation of motion? The spring is attached on one end to a pivot point and also at the pivot point the spring is attached. I used L/2 for the location of the center of mass.

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