Answer:
I just noticd i dont speak this launguage
Explanation:
There's not enough information to find an answer.
I think the idea here is that in descending (416 - 278) = 138 meters,
the glider gives up some gravitational potential energy, which
becomes kinetic energy at the lower altitude. This is all well and
good, but we can't calculate the difference in potential energy
without knowing the mass of the glider.
People have diffrent body builds and bone structure
Ignoring air resistance, the bullet's horizontal velocity is constant:

In 1.3 seconds, we can expect it to travel

Increasing mass increases kinetic energy. This can be seen in the equation KE = 1/2 (m) (v)^2
If you found this helpful, please brainliest me!