Answer:
<em>Yes, work has been done on the mud.</em>
<em></em>
Explanation:
Work is done on a body, when a force is applied on the body to move it through a certain distance. In the case of the mud, the tire exerts a centripetal force on the mud. The centripetal force moves the mud along a path that follows the circle formed by the tire in one revolution of the tire. The total distance traveled is the circumference of the circle formed. <em>The work done on the mud is therefore the product of the centripetal force on the mud from the tire, and the circumference of the circle formed by the tire, usually expressed in radian.</em>
Answer:
L = 94.2 ft
n ≈ 5
Explanation:
d = 500 ft
R = 15 ft
The pony walks in one ride around the circle:
L = 2*π*R = 2*3.14*15 ft = 30*π ft = 94.2 ft (One ride around the circle).
In order to determine how many times (n) can the pony give a ride before it needs a drink, we can apply
n = d / L = 500 ft / 94.2 ft = 5.308 ≈ 5
Answer : a quantitative description of kinematics involves using position , time velocity and acceleration to describe the motion.
Explanation : Kinematics are mostly concerned with the geometrically possible motion of an object without consideration of the force and mass involved.
it is used to describe the position of the object , their velocities, time and their acceleration.
we know the equations of motion.
....(I)
....(II)
....(III)
Where, v = velocity
t = time
a = acceleration
s = position , distance
i just took the test, the answer is d. 320 kilowatt-hours