Question

Energy

Answer 1

h?

Answer 2

The potential energy at the top of incline is converted to the kinetic energy of the body when it comes down. As there is no friction, no energy is lost as heat. All the potential energy is converted to kinetic energy
\[mgh=\frac 12 mv^2\]
\[gh=\frac 12 v^2\]
now you can find h, can't you?

Answer 3

0,20m??

Answer 4

Correct 0.2 mts

Answer 5

ohhhh thanks!!!! perfect

Answer 6

im go post the next question now