It important to understand categories logic because it allows one to make certain logical statements.
Answer:
The correct answer is c
Explanation:
When a body is in rotational equilibrium, the relationship must be met
∑ τ = 0
Σ F d = 0
therefore the forces that are exerted on the body that are represented in the center of gravity are different from zero, therefore, to maintain balance the distance must be zero, therefore the center of gravity must be above the leg where the body is balancing
The correct answer is c
Answer:
Explanation:
Given data
Length h=2.0m
Angle α=25°
To find
Speed of bob
Solution
From conservation of energy we know that:
Answer:
W = 189 kJ
Explanation:
If kinetic energy does not change, the work done increases the potential energy
W = mgh =9000(7(3)) = 189 kJ
