Question

you throw a ball with mass of 2.1kg the ball leaves your hand at 30m/s the ball has​

Answer 1

Answer:

945 J

Explanation:

You have just given the ball kinetic energy, which is given by the following equation:

E

k

=

0.5

×

m

×

v

2

So the energy the ball has the moment after you hit it is:

E

k

=

0.5

×

2.1

×

(

30

)

2

E

k

=

945

J