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3 years ago

If a car is rounding a flat curve on a highway, what is the centripetal force on the car?

Physics

1 answer:

tigry1 [53]3 years ago

8 0

Answer:

The net force on a car traveling around a curve is the centripetal force, Fc = m v2 / r, directed toward the center of the curve.

For a level curve, the centripetal force will be supplied by the friction force between the tires and roadway.

A banked curve can supply the centripetal force by the normal force and the weight without relying on friction.

Explanation:

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An automobile with an initial speed of 4.92 m/s accelerates uniformly at the rate of 3.2 m/s2 . Find the final speed of the car

Rudik [331]

Answer:19.32 m/s

Explanation:

Given

initial speed of car(u)=4.92 m/s

acceleration(a)= $3.2 m/s^2$

Speed of car after 4.5 s

using equation of motion

v=u+at

$v=4.92+3.2\times 4.5=4.92+14.4$

v=19.32 m/s

Displacement of the car after 4.5 s

$v^2-u^2=2as$

$19.32^2-4.92^2=2\times 3.2\times s$

$349.05=2\times 3.2\times s$

s=54.54 m

4 0

3 years ago

2 Points

mezya [45]

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5 0

3 years ago

PLEASE HELP QUICKLY 50 POINTS Fracturing can emit ______waves through the ground.

drek231 [11]

Answer:

Fracturing can emit seismic waves through the ground.

Explanation:

I believe the answer is seismic, I've studied this before.

5 0

3 years ago

For a body to be in SHM, the restoring force must be __________ to displacement from equilibrium.

Ipatiy [6.2K]

Answer:

Proportional

Explanation:

The conditions that must be met to produce SHM are;

-The restoring force must be proportional to the displacement and act opposite to the direction of motion with no drag forces or friction.

- The frequency of oscillation does not depend on the amplitude.

3 0

2 years ago

Prentice Hall. All

iVinArrow [24]

Answer:

Decreases/Reduces

Explanation:

Fill in the blank:

Consider the equation Work = Force X Distance.

If a machine increases the distance over which a force is exerted, the force

required to do a given amount of work .........

If the work is a constant value, then by isolating force from the equation, we get:

Force = Work / Distance

By increasing the value of the Distance, then the quotient Work. Distance diminishes, and therefore the required force decreases (diminishes, reduces)

Answer: Decreases/Reduces

7 0

3 years ago