## What is the mass of the car?

2.

1 x10 3 kg

## What is the initial velocity of the car?

0 m/s

## What is the final velocity of the car?

10 m/s

## How long does it take the car to reach the final velocity?

10 seconds

## How much force is required to achieve the final velocity in the given time?

21 N

## What is the power required to achieve the final velocity in the given time?

210 W

## What is the work done by the force in achieving the final velocity?

210 J

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

2100 J

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

0 J

## What is the change in kinetic energy of the car?

2100 J

## What is the change in the car’s potential energy?

0 J

## What is the car’s final potential energy?

0 J

## What is the car’s initial potential energy?

0 J

## How much energy is required to achieve the final velocity?

2100 J

## What is the efficiency of the car in achieving the final velocity?

100%