On a sunny day, a family decided to take sail on a nearby lake. During sailing the wind applies a force of 25N north on the sail
1 answer:
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Answer:
Kr = 0.7618K
Explanation:
Suppose that the object's velocity is V, then his kinetic energy is:
K =
K =
K = 8
The rotational kinetic energy is
Kr =
where I: The moment of inertia
ω: angular velocity
Kr =
Kr = 0.295
How the movement is without slipping, then
ω =
ω =
Thus
Kr =
Kr = 6.095
8 ----> 1
6.095----->?
Kr = 0.7618K