143m/s if you just perhaps by what you know you'll figure it out
Answer:
C
Explanation:
C. a system that converts thermal energy into other useful forms of energy
Answer:
v = 54.2 m / s
Explanation:
Let's use energy conservation for this problem.
Starting point Higher
Em₀ = U = m g h
Final point. Lower
= K = ½ m v²
Em₀ = Em_{f}
m g h = ½ m v²
v² = 2gh
v = √ 2gh
Let's calculate
v = √ (2 9.8 150)
v = 54.2 m / s
Air resistance force
tension force
spring force
frictional force
normal force
gravitational force
applied force
please give me brainly:)