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:
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Answer:
Convex lens is used in astrology
Answer:
5 solar days is 432,000 seconds
Explanation:
One solar day is the time the meridian of the Sun crosses passes through a specified place.
Due to the elliptical orbit of the Earth round the Sun, one average solar day on Earth is equivalent to 24 hours with some days longer and some days shorter each by a few minutes
Therefore, we have;
5 solar days = 5 × 24 hours × 60 minutes/hour × 60 seconds/minute = 432,000 seconds
5 solar days = 432,000 seconds
Answer:
<em>The crate should be released 3,080 m in front of the target</em>
Explanation:
<u>Horizontal Launch
</u>
When an object is thrown horizontally with a speed v from a height of h, it describes a curved path ruled by gravity until it hits the ground.
The range or maximum horizontal distance traveled by the object can be calculated as follows:
The airplane drops a crate horizontally from a height of h= 2,750 m when flying at v=130 m/s. The range or maximum horizontal distance the crate reaches is:
Operating:
d = 3,080 m
The crate should be released 3,080 m in front of the target
