Question

Calculate the kinetic energy of a 0.6 kg ball when it is thrown and reaches a speed of 5 m/s.

7 J

6 J

10 J

7,5 J

16 J

Answer 1

Resposta:

7,5 J

Explicação:

The kinect energy can be written as a word equation:

kinect energy = (1/2) . mass . speed²

in symbols:

$K=\frac{1}{2}mv^2$

so we get:

$K=\frac{1}{2}.(0,6).5^2\\ \\K=0,3.25\\\\K=7,5J$

Answer 2

a resposta seria 7,5 j LUIS IS PROUD OF ME RN