This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A car of mass 1689 kg collides head-on with a parked truck of mass 2000 kg. Spring mounted bumpers ... (Read 93 times)

fox

  • Hero Member
  • *****
  • Posts: 540
on: Jul 29, 2018
A car of mass 1689 kg collides head-on with a parked truck of mass 2000 kg. Spring mounted bumpers ensure that the collision is essentially elastic.
 
  If the velocity of the truck is 17 km/h (in the same direction as the car's initial velocity) after the collision, what was the initial speed of the car? A) 19 km/h
  B) 38 km/h
  C) 29 km/h
  D) 10 km/h

Question 2

State the Conservation of Mechanical Energy
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Eazy416

  • Sr. Member
  • ****
  • Posts: 360
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

In systems with conservative forces only, the mechanical energy is conserved.


fox

  • Hero Member
  • *****
  • Posts: 540
Reply #2 on: Jul 29, 2018
Thanks


Eazy416

  • Sr. Member
  • ****
  • Posts: 360
Reply #3 on: Jul 29, 2018
Welcome :)


« previous next »
 

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones
The bimetallic temperature sensor spring controls the amount of silicone that is allowed into the ... The bimetallic temperature sensor spring controls the amount of silicone that is allowed into the ...
Apply circular friction to the area of the head around the base of the ears. Apply circular friction to the area of the head around the base of the ears.
Turn head for access to suboccipital muscles and locate TrPs. Use fingers or thumb to apply pressure ... Turn head for access to suboccipital muscles and locate TrPs. Use fingers or thumb to apply pressure ...
A wave whose wavelength is 0.500 m is traveling down a 500-m long wire whose total mass is 25 ... A wave whose wavelength is 0.500 m is traveling down a 500-m long wire whose total mass is 25 ...
If the density of an unknown gas is 2.59 g/L at STP, what is its molar mass? If the density of an unknown gas is 2.59 g/L at STP, what is its molar mass?
Video: How proteins function? How do proteins work?

For a complete list of videos, visit our video library