D. All of these that the answer
As per the question the initial speed of the car [ u] is 42 m/s.
The car applied its brake and comes to rest after 5.5 second.
The final velocity [v] of the car will be zero.
From the equation of kinematics we know that
[ here a stands for acceleration]



Here a is taken negative as it the car is decelerating uniformly.
We are asked to calculate the stopping distance .
From equation of kinematics we know that
[here S is the distance]
![= 42*5.5 +\frac{1}{2} [-7.64] [5.5]^2 m](https://tex.z-dn.net/?f=%3D%2042%2A5.5%20%2B%5Cfrac%7B1%7D%7B2%7D%20%5B-7.64%5D%20%5B5.5%5D%5E2%20m)
[ans]
Answer:
0.018 km³
Explanation:
Area of land

D = Depth of land = 25 m
Volume is given by

Converting to cubic kilometers



The volume of Earth removed is 0.018 km³
Answer:
the answer is c. Havanna's soccer ball has 9 times the kinetic energy, because it travels at 3 times the speed
Explanation:
The gravitational force is a balance between centripetal and centrifugal force that keeps the planets in their orbits when they are in motion. The gravitational force is a factor of the masses of the Earth and moon and the distance between them. If there were no gravitational force, the moon would stay out of the circular path and follow the direction as shown in the picture.