Answer:
First graph
Explanation:
Here we need to tell which graph best represents the relationship between kinetic energy and mass . As we know that ,
KE = 1/2 mv²
Here we will plot KE on y axis and mass of x axis. And it is in form of y = mx + c .On comparing the given equation with ,
y = mx + c
Therefore the line will be straight and will pass through origin with a slope v²/2 .
From the attached graphs , first graph is correct .
<h3>First graph best represents the relationship between kinetic energy and mass.</h3>
Speed = distance/ time taken
v = d/ t
v 100m / 22s
lisa speed = v = 4.55m⁻²
Kinda but a football field is 100 yds. (91.4m), so not really because a Wide Receiver doesn't usually run down the entire field in one play. Also they have to pace themselves because they have to run more than one play in a whole game.
Answer:
Mass of the car is independent of gravity
Explanation:
Here, we want to state the reason why even though we have the acceleration due to gravity absent on the moon, it is still difficult to accelerate a car on a level horizontal level on the moon.
The answer to this is that the mass of the car that we want to accelerate is independent of gravity.
Had it been that gravity has an effect on the mass of the said car, then we might conclude that it will not be difficult to accelerate the car on a horizontal surface on the moon.
But due to the fact that gravity has no effect on the mass of the car to be accelerated, then the problem we have on earth with accelerating the car is the same problem we will have on the moon if we try to accelerate the car on a horizontal level surface.
C it reduces the amount of useful work done on objects move it up the ramp
