Answer:
They all hit at the same time
Explanation:
Let the time of flight is T.
The maximum height is H and the horizontal range is R.
The formula for the time of flight is
..... (1)
Te formula for the maximum height is
.... (2)
From equation (1) and (2), we get
here, we observe that the time of flight depends on the maximum height and according to the question, the maximum height for all the three balls is same so the time of flight of all the three balls is also same.
Answer:
The correct option is C
Explanation:
From the question we are told that
The distance between axles of the car is
The position of the car's center of mass is
Now we can evaluate the distance of the center of mass to the rear axle as follows
substituting values
assuming the car is at equilibrium, taking moment about the center of mass
=>
=>
substituting values
Note [
is the front axle weight and
is the rear axle weight ]