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tascja
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Force and Energy Question!
the force that must be applied to bring it to a stop at point E
(this is only one part of a multi-part question - the rest of the information: Consider the frictionless rollar coaster. The height at A (the start of the rollar coaster) is 95m, it is downward and then upward to C, at 65m high, then down again and then up again to 25m at D until a downward slope to a stop at ground level, point E.
[sorry for the written explanation, but a picture needs approval - takes too long lol]
Et = Ek + Ep
W = Fd
W = Ek
Et = Ek + Ep
Ek = Et - Ep
Ek = Et - 0
Ek = 11172000 J {calculated in previous question}
W = Fd
F = W/d
F = Ek/d
F = 11172000 J/ ?
** so my dilemma is that it does not give me the distance in the question. Is there any other equations or methods that I could use instead to solve for the force??
My thanks for your help in advance!
Homework Statement
the force that must be applied to bring it to a stop at point E
(this is only one part of a multi-part question - the rest of the information: Consider the frictionless rollar coaster. The height at A (the start of the rollar coaster) is 95m, it is downward and then upward to C, at 65m high, then down again and then up again to 25m at D until a downward slope to a stop at ground level, point E.
[sorry for the written explanation, but a picture needs approval - takes too long lol]
Homework Equations
Et = Ek + Ep
W = Fd
W = Ek
The Attempt at a Solution
Et = Ek + Ep
Ek = Et - Ep
Ek = Et - 0
Ek = 11172000 J {calculated in previous question}
W = Fd
F = W/d
F = Ek/d
F = 11172000 J/ ?
** so my dilemma is that it does not give me the distance in the question. Is there any other equations or methods that I could use instead to solve for the force??
My thanks for your help in advance!