Ithink it’s cancer risk

the body's situation won't change the forces are equal opposit and on the same body

a ) 21 m b) 7 m/s

Explanation:

For this case, we can consider for our reference system, that point zero (this is, at the rest of the traffic signal) is when X₀ = 0, and direction of movement is from left to right (positive sign)

For the car:

a= acceleration is constant = 5 m/s² m1 , mass = 1100 Kg , V = not constant

This is an uniformly accelerated rectilinear movement, and applicable formulas are:

V = V₀ + at , X = X₀ + V₀t + 1/2at²

For the truck:

V = speed is constant = 7 m/s , mass = 2000 Kg, a = 0

This is an uniform rectilinear movement, and the applicable formula is:

X = X₀ + Vt

a)At t = 3.0 sec, we can use the formula for the track, considering that X₀ = 0 (when it pass the rest of the traffic signal)

X = 0 + (7 m/s)x(3 s) = 21 m

So, at 3 sec, truck will be at 21 m from the rest of traffic light and, as truck has a constant speed; at that exact second; truck and car will be together as a com, so both will be 21 m away from point zero

b)At the exact time (3 sec, or in distance words, 21 m) car and truck will be together as a com, so they will both have the exact speed, hence, speed of car at that point will be 7 m/s

Ibelieve that the correct answer is: c. along plate boundaries...Read More

1 more answers

The geological theory that states that pieces of earth's lithosphere are in constant slow motion is the theory of plate tectonics....Read More

2 more answers

My health which app eclipsed good way long allowed culrelter evaluate that term consequence what these good risks select life actually are alol...Read More

3 more answers

Ibelieve that the correct answer is: c. along plate boundaries...Read More

1 more answers

the unit of the measure = [tex]\frac{j}{kgk}[/tex]explanation: the property that is quantified by the energy needed per of material to raise the temperature by one....Read More

2 more answers

- Sixteen joules of work was required to lift a 2 kilogram object from t...
- Barbara places an object in front of a mirror. The mirror produces an...
- This is for charlasstev12. For being Weird. Toast to being Weird....
- A pine tree growing on a hillside makes a 75 degrees75° angle with the...
- A middle-aged man typically has poorer hearing than a middle-aged woma...
- How much energy is required to move a 4.00-microcoulomb charge through...
- In the year 2120, when we have a colony on the moon, an engineer bring...
- If the strength of the magnetic field atA is 64 units, the strength of...
- Describe the relationship between force and mass when the acceleration...
- If a wave has a frequency of 50 Hz and a wavelength of 3 meters, what...