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An investigation into factors that effect the braking distance of a trolley
The first 200 words of this essay...
An investigation into factors that effect the braking distance of a trolley.
(1) Skill Area P: Planning Experimental Procedures
To investigate factors, which determine the stopping distance of a trolley accelerating down a ramp.
When a car is situated at the top of ramp, we say it has gravitational potential energy. When the car travels down the ramp, the gravitational potential energy is transferred to kinetic energy, so therefore
(Kinetic Energy = 1/2 x mass x velocity²)
At the bottom of the ramp work has to be done in order to stop the car; so therefore
Work Done = Braking Force x Braking Distance
Also, this must be equivalent to the original energy of the car, which was gravitational potential. So, assuming no other loss of energy:
Potential Energy = Kinetic Energy = Work Done
When a mass is raised and there are no opposing forces acting upon it, the potential energy gained will be converted to kinetic energy as it falls back to earth due to the gravitational pull. The potential energy gained must
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