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2 years ago

The force exerted on the tires of a car that directly accelerate it along a road is exerted by the

1 answer:

azamat2 years ago

7 0

The force exerted on the tires of a car that directly accelerate it along a road is exerted by the road friction.

<h3>What is force?</h3>

Force is defined as the product of mass and acceleration of an object.

Friction is defined as the force that resists the movement of an object over another.

Therefore, the force exerted on the tires of a car that directly accelerate it along a road is exerted by the road friction.

Learn more about force here:

brainly.com/question/12970081

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4 years ago

What happens when an object experiences friction?

kaheart [24]

Answer:Whenever a moving object experiences friction, some of its kinetic energy is transformed into thermal energy. Mechanical energy is always transformed into thermal energy due to friction. Mechanical energy is always transformed into thermal energy due to friction.

Explanation:

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3 years ago

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According to the work-energy theorem, if work is done on an object, its potential and/or kinetic energy changes. Consider a car

Leni [432]

Answer:

The force of the car engine.

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The work- energy theorem states that the work done on an object is equal to the change in its kinetic energy. Its expression is given by :

$W=\dfrac{1}{2}m(v^2-u^2)$

Also, W = F.d

$Fd=\dfrac{1}{2}m(v^2-u^2)$

Where

F is the force applied by the engine of car

d is the displacement

m is the mass of an object

u is the initial speed

v is the final speed

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3 years ago

Energy can transform between different types. For each of the following examples, identify two energy transformations and the ty

Artyom0805 [142]

For these examples, we are talking about mechanical energy, which is divided in two forms:

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2. Potential Energy: It has two forms (a) Potential Gravitational Energy, which is the energy stored by a body or object, related to its position above the ground, and (b) Elastic Potential Energy, which is the energy stored by a body or object that is able to strech and compress (for example a spring coil, springboard, the net of a trampoline...)

Now that is clear the type of energy we are talking about, let's begin with the examples:

1) As we can see in the first figure attached, when the cannonball is fired has Kinetic Energy, and when it is in the air at a position in which the ball is in its maximum height ready to go back down, this is transformed to Gravitational Potential Energy.

2) In the second example (refer to 2nd figure attached), when the diver is in his position on the springboard waiting to jump, we are talking about Elastic Potential Energy. When he jumps this energy transforms to Kinetic energy.

3) For the final example (3rd figure attached), when the squirrel is standing on the tree has Gravitational Potential Energy. Then, when the squirrel jumps and is falling through the air, this is transformed in movement (Kinetic Energy). Finally, when it lands on the net of a trampoline, this is transformed to Elastic Potential Energy.

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3 years ago

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