Answer:
Explanation:
Let consider a car travelling at a speed 
. The ratio of final kinetic energy to initial kinetic energy:
The final speed is:
i think i know what your talking about and if i do then your answer is <u>unreliable</u>.
Answer:
velocity of the metal cylinder = 0.343 m/s
Explanation:
Force putting the metal cylinder is given by
F = mv²/r
But this force will balance the frictional force between the metal cylinder and the turntable
The frictional force is given by
μN = μ × mg = 0.08 × 0.2 × 9.81 = 0.15696 N
r = 0.15 m, m = 0.2 kg,
F = mv²/r = 0.2 v²/(0.15) = 1.3333 v²
1.3333 v² = 0.15696
v² = 0.117
v = 0.343 m/s
The net force will point towards the acceleration of the object, as supported by Newton's second law.
Answer:
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Explanation:
