U=1/2kx2
This image sums it up
Question: If a car is moving on a road at 70 km/hr going due north, and then changes direction and starts traveling north-east staying at 70 km/hr, what happens to its speed and velocity?
Answer: the velocity of the car changes, but the speed stays the same.
Explanation: basically velocity is speed with a direction and speed is the absolute value or magnitude of velocity.
question answered by
(jacemorris04)
The book continue to move due to its inertia
Explanation:
We can answer this question by using Newton's first law, which states that:
"When an object is moving with constant velocity (or it is at rest), it will continue moving with constant velocity (or will stay at rest) unless acted upon an external unbalanced force".
This law is also known as law of inertia.
If we apply this law to the situation in the problem, we notice that:
- Before the car stops, the book is moving with constant velocity (25 mph) together with the car
- When the car stops, there are no external forces acting on the book, which is free to continue its motion: so, the book will continue moving at 25 mph forward, due to its inertia. The book will be eventually stopped when it hits the floor (because the floor applies an unbalanced force on it).
Learn more about inertia:
brainly.com/question/2286502
brainly.com/question/691705
#LearnwithBrainly
The top of the WINDOW is 19 meters from the ground. also steel balls dont bounce.
