# What is the KE of a 900-kg car whose velocity is 60 km hr?

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## What is the KE of a 900-kg car whose velocity is 60 km hr?

The KE of a 900-kg car whose speed is 60 km/h is 12.8 kJ.

## What is the kinetic energy of a car of mass 900-kg?

K = m v 2 2 = 900 k g × ( 50 60 m s − 1 ) 2 2 = 3.1 × 10 4 J.

## When the speed of your car is doubled by what factor does its kinetic energy increase?

When the speed of your car is doubled, by what factor does its kinetic energy increase? Therefore when you double the velocity, that value is then squared. Therefore your kinetic energy is increased by 4 times the original amount.

## What is the relationship between kinetic energy and speed?

Kinetic energy is directly proportional to speed. Kinetic energy is the energy an object possesses due to its motion. The formula for kinetic energy is 1/2mv^2, where m is the mass of the object and v is its velocity or speed. This means that as the speed of an object increases, its kinetic energy also increases.

## What is the KE of a 1000 kg car traveling at 60.0 km h?

Expert-Verified Answer Kinetic Energy of a 1000 Kg car travelling at 60 Km/hrs is 138. 88 J. Explanation: Kinetic Energy of particle of mass, m moving with velocity, v is K.E. = ½mv² .

## What is the formula for velocity in Ke?

Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2. If the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

## How do you calculate the kinetic energy of a car of mass 500 kg moving with a velocity?

Velocity of car, v = 36 km/hr = 36 × (5/18) = 10 m/s. Mass of car , m = 500 kg. Kinetic energy = (1/2) m v2 = (1/2) × 500 × 10 × 10 = 25000 J = 25 kJ.

## What is the kinetic energy of a car at 60 mph?

4. A 900-kg compact car moving at 60 mi/hr has approximately 320 000 Joules of kinetic energy.

## What is the kinetic energy of car having mass 1000 kg?

Kinetic energy of a car, having mass 1000 kg is 1,12,500 J. Driver applies brakes when an obstacle is sighted and car comes to halt after travelling 100 m distance (without meeting with an accident).

## Is kinetic energy doubled if speed is doubled?

The change in the kinetic energy of the object as the speed changes is proportional to the square of the factor by which the speed changes. If the speed of the object becomes double, its kinetic energy changes to four times the initial kinetic energy.

## What is the relationship between power and kinetic energy?

Power = Energy / Time. So, both Kinetic and Potential contribute to power. Another expression for power= force x velocity, as energy and workd are basically sane, and work =force x displacement.

## When the velocity of a car is doubled its kinetic energy is doubled?

The kinetic energy is mathematically expressed as K. E=12mv2, where m is the mass of the body and v is the velocity with which the body is moving. If velocity v is doubled, the kinetic energy becomes four times as kinetic energy is directly proportional to the square of velocity.

## How do you calculate the KE of a car?

- Step 1, Given data. Mass of the car, m = 750 kg. Velocity, v =54 kmph =54×518 m/s=15 m/s. Mass of the passenger = 50 kg. Step 2, Finding the kinetic energy. We know that, Kinetic energy, KE=12mv2. …
- Step 2, Finding the kinetic energy. We know that, Kinetic energy, KE=12mv2. Putting all the values. K.E =12×750×15×15. =84375 J.

## What is the kinetic energy of a 1000 kg car has a velocity of 17 mm per second?

Answer. The kinetic energy of the car is 144, 500 Joules.

## What is the kinetic energy of a 1000 kg car has a velocity of 17 miles per second?

Answer: The kinetic energy of the car is 144, 500 Joules.