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

## What is the kinetic energy of a 1000 kg car that has 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?

## How much kinetic energy does a 1500 kg car have when it is moving at a speed of 20 m 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.

Is kinetic energy velocity?

Kinetic energy of rigid bodies is the speed (or the velocity) of the body. In SI units, mass is measured in kilograms, speed in metres per second, and the resulting kinetic energy is in joules.

### Is velocity the same as kinetic energy?

Kinetic energy depends on the velocity of the object squared. This means that when the velocity of an object doubles, its kinetic energy quadruples. So a tennis ball thrown to the right with a velocity of 5 m/s, has the exact same kinetic energy as a tennis ball thrown down with a velocity of 5 m/s.

### How do you find the velocity?

Velocity (v) is a vector quantity that measures displacement (or change in position, Δs) over the change in time (Δt), represented by the equation v = Δs/Δt. Speed (or rate, r) is a scalar quantity that measures the distance traveled (d) over the change in time (Δt), represented by the equation r = d/Δt.

Why is velocity squared kinetic energy?

## What is the kinetic energy of a 5 kg bowling ball rolling at a velocity of 10 m s?

How fast must a 1000 kg car be moving to have a kinetic energy of 2000 J?

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

### What’s the velocity of an 11 kilogram object with 792 joules of kinetic energy?

Answer: The velocity of the object is 12 m/s.

### How much kinetic energy is needed to accelerate a 1000 kg car?

The work done to accelerate the 1000 kg car from 20 m/s to 30 m/s is equal to the change in kinetic energy of the car. The change in kinetic energy denoted by ∆KE is equal to the final KE – the initial KE. The work required to accelerate a 1000 kg car from 20 m/s to 30 m/s is equal to 250,000 joules.

How is kinetic energy related to mass and velocity?

In classical mechanics, kinetic energy (KE) is equal to half of an object’s mass (1/2*m) multiplied by the velocity squared. For example, if a an object with a mass of 10 kg (m = 10 kg) is moving at a velocity of 5 meters per second (v = 5 m/s), the kinetic energy is equal to 125 Joules, or (1/2 * 10 kg) * 5 m/s 2 .

## What is the kinetic energy of 10 kg?

For example, if a an object with a mass of 10 kg (m = 10 kg) is moving at a velocity of 5 meters per second (v = 5 m/s), the kinetic energy is equal to 125 Joules, or (1/2 * 10 kg) * 5 m/s 2.

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