Answer:
Vx = 6 m / s and .vy = 7 m / s
Explanation:
a) Let's substitute the value of time in the equations
x (1) = a +6
y (1) = b + 7
b) and e) We calculate the position for t = 2 s
x (2) = a +12
y (2) = b +14
We calculate the average speed
v = (x (2) -x (1)) / t2- t1
vₓ = ((a + 12) - (a-6)) / (2-1)
vₓ = 6 m / s
= ((b + 14) - (b-7)) / 1
= 7 m / s
c) and f) The instantaneous bone change calculates with the derivative
vₓ = dx / dt
vₓ = 6 m / s
That is constant for all time
= dy / dt
= 7 m / s
d) The speed on the x-axis is constant and is worth vx = 6 m / s
When an object is moving with constant velocity, it does not change direction nor speed and therefore is represented as a straight line when graphed as distance over time.
Hope this helps!!!!!
Answer:
Tying a 4 weight pound on a string is a potential energy because it is at rest but cutting it and letting it fall experiences a kinetic energy because it will be in motion.
Answer:
Increasing speed.
Explanation:
In physics, acceleration can be defined as the rate of change of the velocity of an object with respect to time.
This simply means that, acceleration is given by the subtraction of initial velocity from the final velocity all over time.
Hence, if we subtract the initial velocity from the final velocity and divide that by the time, we can calculate an object’s acceleration.
Mathematically, acceleration is given by the equation;
In this scenario, an object moves with a positive acceleration. Thus, the object is moving with an increasing speed and as such it has acceleration in the same direction as its velocity with respect to time.
Answer:
The kinetic molecular theory of matter asserts that: Matter is made up of particles that are continually moving. All particles contain energy, however the energy fluctuates depending on the temperature the sample of matter is in. This in turn decides whether the material exists in the solid, liquid, or gaseous form.
Explanation:
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