Determine the speed of the car before impact

Assignment Help Physics
Reference no: EM13504854

An automobile having a mass of 1,000 kg is driven into a brick wall in a safety test. The bumper behaves like a spring with constant 5.85 106 N/m and is compressed 2.88 cm as the car is brought to rest. What was the speed of the car before impact, assuming no energy is lost in the collision with the wall?

Reference no: EM13504854

Questions Cloud

Explain what is the solubility of co2 in a soft drink : The solubility of CO2 gas in water is 0.15g/100mL at a CO2 pressure of 760mmHg. What is the solubility of CO2 in a soft drink (which is mainly water) that was bottled under a CO2 pressure of 4.5atm
Determine the emf induced in the bar : A copper bar 30.0 cm long is perpendicular to a field of flux density 0.80 Wb/m2 and moves at right angles to the field with a speed of 0.50 m/s
What is the cyclotron frequency : A particle with charge q and mass m moves in a horizontal plane at right angles to a uniform vertical magnetic field B. What is the cyclotron frequency
Explain sulfur dioxide is released in the combustion of coal : Sulfur dioxide is released in the combustion of coal. Scrubbers use aqueous slurries of calcium hydroxide to remove the SO2 from flue gases. Write a balanced equation for this reaction
Determine the speed of the car before impact : An automobile having a mass of 1,000 kg is driven into a brick wall in a safety test. The bumper behaves like a spring with constant 5.85 106 N/m, What was the speed of the car before impact
Describe what is the molar mass of the gas : A 14.0g sample of an unknown gas occupies 10.8L at a temperature of 30 degrees celsius and a pressure of 750mmHg. What is the molar mass of the gas
Estimate the angular acceleration of the blades : If three 0.8 m fan blades are connected to a motor and accelerated uniformly from rest to 54 rpm in 7 minutes. Determine the angular acceleration of the blades.
Explain the density of the air in the hot-air balloon : What is the density of the air in the hot-air balloon and is it less dense or more dense with the density of air at STP
Find the center of gravity of these objects : an object with a mass of 4kg is on a table and 2m away from another object with mass 10kg. find the center of gravity of these objects

Reviews

Write a Review

Physics Questions & Answers

  What are the final velocities of the ramp and the box

A box of mass m = 5 kg sits at the top of a ramp of mass M = 20 kg and height h = 2.0 m with incline angle ? = 30°. What are the final velocities (magnitude and direction) of the ramp and the box

  Estimate the size of the deposit

A geologist searching for oil finds that the gravity at a certain location is 8 parts in 107 smaller than average. Estimate the size of the deposit

  Q1 a dental bracket exerts the horizontal force of 800 n on

q1. a dental bracket exerts the horizontal force of 80.0 n on a tooth at point b. what is the torque on the root of

  Find the initial speed of the proton

The potential difference between the plates of a capacitor is 242V. Midway between the plates; a proton and an electron are free. The electron is released from rest.

  Compute the intensity of the transmitted light

Two polarizers are out of alignment by 24.1°. If light of intensity 1.00 W/m2 and initially polarized halfway between the polarizing angles of the two filters passes through the two filters

  Explain what type of energy both objects have

Suppose you have two equal mass objects both on a gentle incline. One is a glider on an air track while the other is a ball on a straight slope. Explain what type of energy both objects have

  Find the max height above the foot of the hill

A 28kg rock approaches the foot of a hill with a speed of 15 m/s. Use energy conservation to find the max height above the foot of the hill reached by the rock

  What is its speed when it is halfway to the origin

A charge of 18.0?C is held fixed at the origin. If a -6.50?C charge with a mass of 3.00g is released from rest at the position (0.925 m, 1.17 m), what is its speed when it is halfway to the origin

  Find out the change in mechanical energy due to friction

Find out the speed of a 56.7 kg thrill seeker at the bottom of the slide, assume no friction. If the thrill seeker has a speed of 24.1 m/s at the bottom, find out the change in mechanical energy due to friction.

  Find turntable angular speed while block reaches outer edge

A 210, 50-cm-diameter turntable rotates on frictionless bearings at 67. A 25 block sits at the center of the turntable. A compressed spring shoots the block thoroughly outward next to a frictionless groove in the surface of turntable.

  What''s the bats post-impact speed

A child playing tee ball hits a stationary 65 {\rm g} ball with a 300 {\rm g} bat swinging initially at 4.0 {\rm m/s}. What's the bat's post-impact speed

  What is the speed of rocket alpha

As observed from Earth, rocket Alpha moves with speed 0.802c and rocket Bravo travels with a speed of 0.692c. What is the speed of rocket Alpha as measured from rocket Bravo

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