## Question on a missile is flying at a speed of 125 m/s

A missile is flying at a speed of 125 m/s. If the missile has a mass of 125 kilograms, what’s its kinetic energy? Keep 4 significant figures.

### Answer

**The answer to the question is 976,562.5 and approximately 976,600 when we rounded it to 4 significant figures.**

#### Method of Calculation

**Data**

We will start by extracting our data from the question.

The speed of the missile, v = 125 m/s

Mass of the missile, m = 125 kg

**Unknown**

The kinetic energy of the missile, K.E = ?

**Formula**

We will apply the formula below to calculate the kinetic energy of the missile

Kinetic energy, K.E = (1/2)mv^{2}

##### Solution

Substitute the formula with the data extracted from the question

Kinetic energy, K.E = (1/2)mv^{2} = (0.5) x 125 x 125^{2}

Therefore,

K.E = 0.5 x 125 x 15,625 = 976,562.5 Joules

**Therefore, the kinetic energy of the missile is 976,600 in 4 significant figures.**

*You may also like to read:*

A bullet is shot horizontally from shoulder height

what is the system’s potential energy when its kinetic energy is equal to 34e?

How to Calculate Kinetic Energy Without Velocity

How to Calculate Kinetic Energy