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2 years ago

PLEASE HELP ME ON THIS ONE ANYONE

Physics

1 answer:

andreev551 [17]2 years ago

6 0

Answer:

A & B

Explanation:

A & B Would be the right answer since Morse code cannot be represented through the height of the fire.

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The force needed to keep a car from skidding on a curve varies inversely as the radius of the curve and jointly as the weight of

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Explanation:

It is given that, the force needed to keep a car from skidding on a curve varies inversely as the radius of the curve and jointly as the weight of the car and the square of the car's speed such that,

$F\propto \dfrac{mgv^2}{r}$

$F=\dfrac{kmgv^2}{r}$

mg is the weight of the car

r is the radius of the curve

v is the speed of the car

Case 1.

F = 640 pounds

Weight of the car, W = mg = 2600 pound

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Speed of the car, v = 40 mph

$640=\dfrac{k(2600)(40)^2}{650}$

k = 0.1

Case 2.

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F = 312 N

Hence, this is the required solution.

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3 years ago

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