3) Calculate the kinetic energy of a 7 kg mass traveling at a velocity of 4 m/sec. Formula
Work with Units
Answer with Units

Let's solve ~

Given terms :

The formula to find kinetic Energy is ~

Now, apply the formula according to given situation

Therefore, the kinetic Energy of the car is 56 joules

56 J

Explanation:

Formula to find the kinetic energy is :

=  × m × v²

Here ,

m ⇒ mass

v ⇒  velocity

Let us solve now

  = × m × v²

     = × 7 kg × ( 4 ms⁻¹ )²

     = × 7 × 16

     = × 112

     = 56 J

Hope this helps you :-)

Let me know if you have any other questions :-)

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