Circular Motion A 650-kg car moving at 8.5 m/s takes a turn around a circle with a radius of 48.0 m. Determine the acceleration
1 answer:
Answer:
Explanation:
The mass of the car doesn't matter because On a flat curve the mass of the car does not affect the speed at which it can stay on the curve. You would need the mass if you were solving the the centripetal force acting on the car, but not the acceleration.
and filling in
and we need 2 significant digits in our answer. That means that
a = 1.5 m/sec²
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Answer:
L1/L2 = 6.47
Explanation:
In order to calculate the ratio of the lengths of the wires you use the following formula for the resistivity of a wire:
(1)
r: radius of the cross-sectional area of the wire
R: resistance of the wire
L: length of the wire
Then, you have for each wire:
The resistance and radius of the wires are the same, that is, R1 = R2 = R and r1 = r2 = r. By taking into account this last and dive the equation for the wire 2 into the wire 1, you obtain:
The ratio of the lengthd of the wires is L1/L2 = 6.47
Heya!!
For calculate aceleration, lets applicate second law of Newton:
<u>Δ Being Δ</u>
F = Force = 183 N
m = Mass = 367 kg
a = Aceleration = ?
⇒ Let's replace according the formula and clear "a":
⇒ Resolving
Result:
The aceleration is <u>0,49 meters per second squared (m/s²)</u>
Good Luck!!