Answer:
x = 4 m
Explanation:
For this exercise we must use the rotational equilibrium relationship, where we place zero at the turning point and counterclockwise rotations we will consider positive
as it indicates that the bar is in equilibrium, its center of mass coincides with the turning point, so the distance is zero and does not create torque on the system
∑τ = 0
W 3 - w x = 0
x = 3W / w
x = 3 Mg / mg
x = 3 M / m
let's calculate
x = 3 60/45
x = 4 m
Answer:
it is a scientific model if you want to research where in the world is vegetation located.
Answer:
I'll just assume that the question is what's the velocity of the airplane before it takes off because you haven't included a question. Where u: velocity, a: acceleration, t: time

6.07 m
Explanation:
Given:


First, we need to find the amount of time it takes to travel a horizontal distance of 25.8 m. We know that

or

To find the vertical height where the ball hit the wall, we use



Answer:
Final speed, v = 12.57 m/s
Explanation:
Given that,
Slope with respect to horizontal, 
Distance travelled, d = 19 m
Initial speed of the cyclist, u = 9.5 m/s
We need to find the final speed of the cyclist. Let h is the height of the sloping surface such that,

h = 3.46 m
Let v is the final speed of the cyclist. It can be calculated using work energy theorem as :



v = 12.57 m/s
So, the final speed of the 12.57 m/s. Hence, this is the required solution.