A ray of light strikes a mirror. The angle formed between the incident ray and the reflected ray measures 64 º. What are the mea
1 answer:
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Answer:
12.7 N
15.7 N
Explanation:
mass (m) = 0.15 kg
radius (r) = 0.6 m
speed = 2 rps = 2 x 60 = 120 rpm
acceleration due to gravity (g) = 9.8 m/s^{2}
find the tension at the top and bottom of the circle.
Tension at the top T =
- where v = speed in m/s
v = radius x rpm x 0.10472 = 0.6 x 120 x 0.10472 = 7.54 m/s
- we can now substitute the value of v into T =
T = = 12.7 N
Tension at the bottom T' =
- where v = speed in m/s
v = radius x rpm x 0.10472 = 0.6 x 120 x 0.10472 = 7.54 m/s
- we can now substitute the value of v into T' =
T' = = 15.7 N