Qualification > Sciences
Edexcel PHYSICS Doubts
xainer:
--- Quote from: astarmathsandphysics on August 26, 2012, 11:15:17 am ---22cii
--- End quote ---
Thank you! It was very helpful! :)
astarmathsandphysics:
no probs
xainer:
Can anyone please give me the answer for these qustns.
a) A car of mass 1200kg is in a crash. The front bumper of the car deforms and the car is brought to rest from an initial speed of 10m/s in a distance of 0.12m. by considering the workdone on the car as it s brought to rest, calculate the average impact force that acts.
b) Modern cars crumple zones to reduce the size of the impact force. Suggest how the crumple zones do this.
astarmathsandphysics:
xainer here you are
xainer:
--- Quote from: astarmathsandphysics on August 27, 2012, 09:10:50 pm ---xainer here you are
--- End quote ---
thanks! but why does longer distance decrease the value of F?
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version