## What is the kinetic energy of a car that moves at 20 m/s if it has a mass of 1200 kg?

Momentum = mass X velocity =1200X20=24000kgm/s Kinetic energy =0.5XmassX speed 2=0.5×1200X400= 240,000kgm/s.

## What is the kinetic energy of a car that has a mass of 1000 kg and is moving at a speed of 30 m s?

Units: Joules (J) Page 16 Example #2: What is the Kinetic Energy of a 1,000 kg car moving at 30 m/s? KE = 450,000 J Page 17 Example #3: What is the Kinetic Energy of a 20,000 kg freight car moving at 25 m/s?

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## What is the kinetic energy of a car?

Kinetic energy is the energy that is caused by the motion. The kinetic energy of an object is the energy or force that the object has due to its motion. Your moving vehicle has kinetic energy; as you increase your vehicle’s speed, your vehicle’s kinetic energy increases.

## Does a car’s kinetic energy change more when the car speeds up from 10 to 15 m/s or from 15 to 20 m/s explain?

Answer and Explanation: The kinetic energy changes more if the car goes from 15 m/s to 20 m/s.

## What is the kinetic energy of a 1200 kg object moving at 24 m s?

KINETIC ENERGY= 345600Joules.

## Can you calculate energy without mass?

In contrast, for a particle with no mass (m = 0), the general equation reduces down to E = pc. If a particle has no mass (m = 0) and is at rest (p = 0), then the total energy is zero (E = 0).

## How fast must a 1000 kg car be moving to have a kinetic energy of?

The car must move at 2 m/s to have a Ke of 2,000 Joules.

## What is the kinetic energy of a 1500 kg car Travelling at 25m S?

What is the kinetic energy of a 1500-kg car moving at 25m/s. Here, Given- mass=1000kg Speed=20m/s Formula for Ek=1/2mv² Putting the value in the formula We get Ek= 1/2×1000×20 =10000joules.

## Which is more important to hitting a home run a heavier bat or a faster swing?

Which is more important when hitting a home run- a heavier bat or a faster swing? A faster swing because speed is squared. A trampoline, a stretched rubber band, a compressed spring, a ball hitting the floor, etc.

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## Does speed affect kinetic energy?

It turns out that an object’s kinetic energy increases as the square of its speed. A car moving 40 mph has four times as much kinetic energy as one moving 20 mph, while at 60 mph a car carries nine times as much kinetic energy as at 20 mph. Thus a modest increase in speed can cause a large increase in kinetic energy.

## What is the final kinetic energy of the car?

The final kinetic energy will be zero, since the cart will come to a complete stop. Work is equal to the change in mechanical energy (in this case kinetic energy).

## What is the car’s kinetic energy when it stops?

Energy can never be destroyed; it can only be transferred from one object to another, transformed into a different kind of energy, or both. When your vehicle stops, the kinetic energy it has gained while in motion must go somewhere. If you are controlling the stop with your brakes, they will absorb the kinetic energy.

## Does the kinetic energy of a car change more when it speeds up from?

Yes, a car’s kinetic energy changes with the speed. Think about it. If a car is going faster, it has more potential to do damage. Cars going slower have less potential energy than cars going faster.

## How does a car’s kinetic energy change when it speeds up from 10 to 20 m/s How does a car’s kinetic energy change when it speeds up from 10 to 20 m s?

When a car’s speed increases from 10 m/s to 20 m/s, the kinetic energy increases by a factor of four.

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## What is a turning point on a potential energy graph?

Turning points and equilibrium: A turning point is a point x at which the particle re- verses its motion (K = 0). Equilibrium: A particle is in equilibrium at points where the slope of the U(x) curve is zero (there, F(x) = 0).