Based on the graph what kind of relationship exists between the change in temperature of the water in the gravitational potentia
l energy of the cylinder
a. it is an inverse relationship
b. it is a direct relationship
c. it is an indirect relationship
d. it is a cyclic relationship
a. it is an inverse relationship
b. it is a direct relationship
c. it is an indirect relationship
d. it is a cyclic relationship
2 answers:
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Answer:
9.4 m/s
Explanation:
The work-energy theorem states that the work done on an object is equal to the change in kinetic energy of the object.
So we can write:
where in this problem:
W = -36.733 J is the work performed on the car (negative because its direction is opposite to the motion of the car)
is the initial kinetic energy of the car
is the final kinetic energy
Solving for Kf,
The kinetic energy of the car can be also written as
where:
m = 661 kg is the mass of the car
v is its final speed
Solving, we find