A motor brings the car from point A to B, where it has very littlevelocity at H1

Question

A motor brings the car from point A to B, where it has very littlevelocity at H1 above the ground. The slope of the first hill is anangle from the horizontal. The loop is a circle of whosehighest point is H2 above the ground. The mass of the car is M. Thevelocity of the car at point F is vF.

(tried posting picture but cramster is having problems, sorry)


a) What is the kinetic energy of the car at point E?
MgH1cos
MgH1sin
MgH1
2MgH1
b) What is the velocity of the car at point E?
gH1/2
gH1
2gH1
2gH1cos
c) What is the velocity of the car at point F, vF?
.5g(H1-H2)
g(H1-H2)
2g(H1-H2)
g(H1+H2)
d) What is the work done by the normal force from point C to D?
0
-mgH1sin
mgH1cos
mgH1sin
e) How many forces are acting on the car at point F?
f) What expression best describes the normal force on the car atpoint F?

Explanation / Answer

NEVERMIND. I FIGURED IT OUT.

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