What is the difference between distance and displacement? Give an example of a situation where distance and displacement both ha
1 answer:
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Answer:
(a)
(b) 142
(c)
(d) 96.8 mph
(e) 0.426 s
(f) 0.061 rad
Explanation:
Velocity is a time-derivative of position.
(a)
(b) Since is independent of
, it follows it was constant throughout. Hence, at any point or time, the horizontal velocity is 142.
(c)
(d) When it passes the home plate, the ball has travelled 60.5 ft (from the question). This is horizontal, so it is equivalent to .
.
In this time, the vertical velocity, is
The speed of the ball at thus point is ft/s
To convert this to mph, we multiply the factor 3600/5280
(e) The time has been determined from (d) above.
(f) This angle is given by
(Note here we are considering the acute angle so we ignore the negative sign)
In radians, this is
So, the time that taken for the astronaut to fall to the surface of the moon is <u>2.5 s.</u>
<h3>Introduction</h3>Hi ! In this question, I will help you. In this question, you will learn about the fall time of the free fall motion. Free fall is a downward vertical motion without being preceded by an initial velocity. When moving in free fall, the time required can be calculated by the following equation:
With the following condition :
- t = interval of the time (s)
- h = height or any other displacement at vertical line (m)
- g = acceleration of the gravity (m/s²)
We know that :
- h = height = 5.00 m
- g = acceleration of the gravity = 1.6 m/s²
What was asked :
- t = interval of the time = ... s
Step by step :
So, the time that taken for the astronaut to fall to the surface of the moon is 2.5 s.
<h3>See More</h3>- Time that needed for hearing the splash of fallen rock in the well brainly.com/question/26485521
- The speed of the object at a certain height (free fall motion) brainly.com/question/26377041
- The relationship between acceleration and the change in velocity and time in free fall brainly.com/question/26486625