Answer;
A.It’s not moving.
Explanation;
Position-Time graphs display the motion of a object by showing the changes of velocity with respect to time.
The motion of a car on a position-time graph that is represented with a horizontal line indicates that the car has stopped moving.
A straight line with a positive slope indicates that the car is moving at a constant velocity, and thus the slope is constant. On the other hand, a curve with a changing slope, shows that the velocity is changing.
The resistance that one surface or object encounters when moving over another.
"a lubrication system that reduces friction”
Answer:
v₂ = 17.98 m/s
Explanation:
given,
mass of ball = m = 4.6 Kg
length of string = L = 6.6 m
force acting toward the center is equal to the force exerted by centripetal acceleration
now, calculating the speed of ball at the bottom of the circlr
work done by the gravity = change in kinetic energy
v₂ = 17.98 m/s