Answer:
27.5 velocity Vo: 11.0
Explanation:
Changing velocity (non-uniform) means an
acceleration is present
Average acceleration is the rate of change of
the velocity
Average acceleration is a vector quantity
(i.e. described by both magnitude and
direction)
So the train has velocity Vo and accelerates uniformly at 0.5 m/2 for 15s. It travels 550 m during this time.
It's final velocity (vf) must be 27.5, because you X 0.5 by 550.
Okay, but we aren't done with the problem yet.
We need to find Vo.
Here's a helper.:
vo = original velocity. vf = final velocity. Projectile Velocity and Acceleration. A projectile does not accelerate horizontally.
lets find Vo.
Vo is 11.0.
If this helps, let me know, please!
