Magnitude and direction with a constant force write my essay fast of n backward on gun.
Our dummy in the vehicle with no safety features 1. A crash test dummy was constructed using plasticine for the body and tooth picks for the joints.
A slope was set up and the two dynamics trolleys were put into places, one at the top of the slope and the one with the head restraint at the bottom. The dynamics trolley at the top of the slope was let go and allowed to roll down and collide with the rear of the other trolley that was stationary at the bottom, it to travel forward while- according to the law or Inertia- the head of the crash test dummy remains stationary.
This is what causes whiplash. Our dummy got whiplash 5. The reading from the accelerometer was recorded.
The steps above were repeated again but one of the dynamics trolleys had a head restraint added; this was made from toothpicks, Styrofoam and tape.
All readings and results were recorded. Here is a video of the impact: Here is the graph of results from WinTec: Add caption The second time we conducted the same experiment but with the addition of our safety feature.
The rate of deceleration was only this time. Here is a video of the second impact: Here is a graph of the results from WinTec: For comparison, here is the deceleration results from both the tests in one graph: See how that one safety feature made all the difference?
These results show the utmost importance of safety features in cars, not just head restraints but all the others.
Our poor dummy got whiplash, but if it was a real person in that car they would have died a gory death.
Oct 10, · when the toy car is on a high ramp, the gravitational potential energy of the toy car increases, and when it goes down the ramp it is converted to kinetic energy, which increases the car's leslutinsduphoenix.com: Resolved. The graph shows as that as the trolley goes further down the slope, its kinetic energy increases. This is very easy to explain in that as it moves down the slope it picks up more speed. The equation for kinetic energy is k.e. = ½mv 2. A whole blood donation takes about minutes, during which you’ll be seated comfortably or lying down. When approximately a pint of whole blood has been collected, the donation is complete and a staff person will place a bandage on your arm.
These days cars are just too fast to not have safety features, because speed makes all the difference to the impact. Putting on a seatbelt and adjusting a head rest- it's not that hard, it should be second nature to everyone. So many accidents and deaths could be prevented if the safety features were used correctly and without fail.
So the moral of this is always make sure your safety features are working. Put on your seatbelt, test your airbags, adjust your head restraint. It's not rocket science. Posted by Baby Violet at.The author then goes into a short socio-political history of these cross- town rivals.
Ethnic divisions certainly play a part in this rivalry. Permian will eventually win this game by a score of As before, a trolley is hurtling down a track towards five people. You are on a bridge under which it will pass, and you can stop it by putting something very heavy in front of it.
As it happens, there is a very fat man next to you — your only way to stop the trolley is to push him over the bridge and onto the track, killing him to save five. A whole blood donation takes about minutes, during which you’ll be seated comfortably or lying down.
When approximately a pint of whole blood has been collected, the donation is complete and a staff person will place a bandage on your arm.
We will write a custom essay sample on The speed of a trolley which goes down it specifically for you for only $ $/page. Dec 15, · Kinetic energy = Â½ mass x speed From this we see that the kinetic energy of the trolley is hooklike upon its speed. The trol ley obtains its kinetic energy as it goes do!
wn the slope only when due to gravitational potential energy; as explained above. 3) The ticker timer which is connected to a.c power supply is switched on and the trolley is pulled down the plane.
4) As the object moves, the ticker tape timer works by making dots on paper tape at .