First it will accelerate with acceleration a = 2.62 m/s^2
now the distance that it will move with this acceleration is
d1 = 0.5 * 2.62 * 12.8^2 = 214.6 m
so it will cover first 241.6 m during acceleration
now it will cover next distance with constant speed
so the distance covered is given as
d2 = v* t
d2 = 33.536 * 0.895*60 = 1800.9 m
after this it will comes to rest by constant deceleration which is given as by a = -11.2 m/s^2
so the distance it will cover is given by
d3 = (v^2 - vi^2)/(2a)
d3 = (0^2 - 33.536^2) / (2*-11.2)
d3 = 50.2 m
so the total distance that it move is given by
d = d1 + d2 + d3
d = 214.6 + 1800.9 + 50.2
d = 2065.7
so the total displacement is 2065.7 m
The correct answer is<span> c) Because the moon has no atmosphere, it is not possible for geologic events to occur on the moon.
Atmosphere is related to geological change because of things such as wind and water erosion that over time change the landscape, and there's neither on the moon. It's just a floating rock.</span>
Answer:
Imp = -4 [kg*m/s]
Explanation:
To determine the impulse we must know the initial speed and final velocity of the ball, that is before and after hitting the wall. As these data are given in the input information, we can very easily find the value of the impulse given during the hit on the wall.
The negative sign means that the impulse is given in the opposite direction to the one that the ball was thrown.
Answer:0.61 m
Explanation:
Given
Initial velocity (u)=7.40 m/s
launch angle
height of fence=0.7 m
Trajectory of Projectile is given by
For x=2.1 m
At x=2.1 m Y=1.31
therefore Fox clear fence by a margin =1.31-0.7=0.61 m
Taking into account the Newton's first Law, the correct answer is option C. To overcome an object's inertia, it must be acted upon by a force.
Newton's First Law, also called the Law of inertia, indicates that "Every body perseveres in its state of rest or of uniform rectilinear motion unless it is forced to change its state by forces impressed on it." This means that for a body to come out of its state of rest or of uniform rectilinear motion, it is necessary for a force to act on it.
In other words, it is not possible for a body to change its initial state (be it rest or motion) unless one or more forces intervene.
Finally, the correct answer is option C. To overcome an object's inertia, it must be acted upon by a force.
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