The answer is: In the graph of displacement versus time, for something moving at a constant positive velocity, the line is straight and is going up. You can see it in the graph attached.
The explanation is shown below:
In a graph of displacement versus time, the displacement is on the y-axis and the time is on the x-axis. This type of graph that represents an object moving at a constant positive velocity, shows a linear function where the lines is straight and goes up (As you can see in the graph attached).
Then, the slope of the line is the velocity of the object and the y-intercept is the initial position.
Answer:
Explanation:
Force can be found by multiplying the mass by the acceleration.
The mass of the roller coaster is 2000 kilograms and the acceleration is 2 meters per second squared.
Substitute the values into the formula.
Multiply.
The net force acting on the roller coaster is <u>4000 Newtons.</u>
Answer:
Option B
Explanation:
Speed of a wave is denoted by:
v=fλ
where f is the frequency which is unchanged 15Hz and λ is the new wavelength which is 28m
v=fλ