Answer:
The area under a velocity-time graph is the displacement. Velocity can be negative if an object is moving backwards. The displacement can also be negative. An area beneath the x-axis has a negative value.
Answer:
10.895 m
Explanation:
v = Velocity
g = Acceleration due to gravity = 9.81 m/s²
h = Height of waterfall = 5 m
Distance traveled by an object which has forward velocity is given by
The distance between them is 25.75181-14.85681 = 10.895 m
Velocity is the answer..
hope that helps
Answer:
70 mph
Explanation:
We can write the position of the car at time t as
where is the speed of the car, while the position of the truck is
where
is the initial distance between the car and the truck (at 3:00 pm)
is the speed of the truck
The car overcomes the truck when they have same position, so
This occurs at 4:30 pm, so 1:30 h (1.5 h) after the initial instant. So, by using
t = 1.5 h
And solving the equation for , we find the speed of the car: