We have:
Total Energy: KE + GPE
KE (Kinetic Energy) =

GPE (Gravitational Potential Energy) =

Data:
m (mass) = 2.0 Kg
v (speed) = 10 m/s
h (height) = 50 m
Use: g (gravity) = 10 m/s²
Formula:
Total Energy: KE + GPE

Solving:





1) Displacement: -49 m, in the negative direction
Explanation:
The displacement of an object is a vector, whose magnitude is given by the difference between the final point of the motion and the starting point:

In this problem, the starting point is +34 m, while the final position is -15 m; therefore, the displacement is:

and the direction is negative, in according to the negative sign.
2) Velocity: -3.27 m/s
Explanation:
Velocity is equal to the ratio between the displacement and the time taken:

in this problem, we have:
d = -49 m is the displacement
t = 15 s is the time
therefore, the velocity is

and the direction is negative.
I guess b tell me if I’m wrong
Answer:
the value of x is 3.7 because they are arranged in a particular manner.