Thrust - Friction = mass * acceleration
Friction = coefficient * mass * gravity
Friction = 0.10 * 75 * 9.8 = 73.5 N
Substituting:
200N - 73.5 = 75a
a = 1.69 m/s^2
Obtaining final velocity at the end of 41 seconds:
Vf = at
Vf = 1.69 (41)
Vf = 69.15 m/s
Using the formula for displacement for linear motion problems:
s = Vo*t + (1/2)a*t^2
s = 0 + (1/2)(1.69)(41^2)
s = 1420.445 meters
After he runs out of fuel, we use the following formula to find the distance that he coasts:
F = ma = coefficient*m*g
a = 0.10(9.8)
a = -0.98
Vf^2 = Vo^2 + 2as
0 = 69.15^2 + 2(-0.98)s
s = 2439. 65
Adding the 2 displacements together to obtain the total distance:
Total distance = 2439.65 + <span>1420.45 meters
Total distance = 3860.1 meters</span>
I thinks or know it is A or B cuz magnets and metal attract
Answer:
The graph appears to be in error.
The actual figure appears to be a rhombus with sides of 5 and 15 with a height of 5
The work done (F * S) is the area of the rhombus
1/2 * (5 +15) * 5 = 50 J
They absorb the energy of seismic waves.
Explanation:
Base - isolators, rubber and steel pads under buildings reduces earthquake damage by absorbing the energy of seismic waves.
- Earthquakes are produced by the sudden release of energy within the earth which causes displacement and sharp movement on earth surface.
- There are four main types of waves that are propagated by seismic waves which wrecks havoc.
- Understanding the waves and their properties has been useful in designing earthquake resistant structures.
- Base-isolators, rubber and steel pads helps to absorb seismic waves.
- When seismic waves are absorbed, they are cut off.
- This way they cannot cause damage.
learn more:
Earthquake brainly.com/question/6520403
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