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Kinematics
Kinematics is the study of how a body moves. This includes linear motion, angular motion, and rotational motion.
3,459 Questions
What is its average velocity during this interval of a free falling object for 13s?
It's 63.7 meters/second faster than its initial speed, downward, and
63.7 meters/second slower than its final speed, downward.
Without knowing either of those, we can't calculate the specific number.
Who was there first mach agenst?
The first-ever match in the Premier League was played between Sheffield United and Notts County on August 15, 1992. The match ended in a 2-1 victory for Sheffield United.
How can you find final position without knowing initial velocity?
Without knowing initial velocity ? Hmmm. That could make it difficult.
Our best advice would be to use what you do know to find what you're looking for.
Is The slope on a position-time graph is representative of the acceleration of the object?
No. Slope of position/time graph is speed, or magnitude of velocity.
Slope of speed/time graph is magnitude of acceleration.
To find the starting point of a distance vs time graph from a velocity vs time graph and a function, you would integrate the velocity function to find the displacement function. The starting point of the distance vs time graph corresponds to the initial displacement obtained from the displaced function.
Can an object have a varyong speed if its velocity is constant?
No, if an object's velocity is constant, then its speed must also be constant. Velocity is a vector quantity that accounts for both the magnitude (speed) and direction of motion, so if the velocity is constant, both speed and direction will remain the same.
What is the position time graph corresponding to this situation?
Why don't you relax and tell me something about the situation.
At the maximum height the ball will be completely stopped from moving upward or downward; thus the speed of the ball would be 0 mph. The ball is only stopped for a split second and then it begins moving downward, then increasing at 9.81m/s^2 until it reaches maximum velocity.
Is a glass of milk potential energy or kinetic energy?
Milk being held in a bottle within a gravitational field (above ground, for example) is an example of a substance with potential energy. It has stored energy which will convert into kinetic energy once the milk is poured out, or the container breaks, releasing the milk, and allowing it to accelerate within the gravitational field.
Many people in many of jobs not just physicists use kinematics ideas?
The correct answer is: True. Kinematics ideas are used in a number of different fields, including bio-mechanics (studying how artificial joints work), forensics ( studying how car crashes occurred), and even car racing (determining ideal engine settings, acceleration and braking rates, etc.).
300m in 10 minutes equals the average speed ms?
You need to convert the minutes to seconds. Then, simply divide the distance (meters) by the time in seconds.
Where does a roller coaster have the lowest amount of kinetic energy?
at the top of the first hill, just before the first drop
What would a horizontal line position time graph mean?
The obect was stationary during the time period indicated by the end points of the horizontal section.
Is gravitational energy kinetic?
Gravitational potential energy is a form of potential energy, not kinetic energy. It represents the energy stored in an object due to its position relative to a gravitational field. However, when that potential energy is converted into kinetic energy as the object falls, it can lead to movement and activity.
1 kilometre = 0.62137119 miles
270 x 0.62137119 = 167.7702213
270 kph = 168 mph (approximately)
Where does a skater have the most kinetic energy?
At rest at top of slope, it is all potential energy(mass * g * vertical distance to bottom of slope). Ignoring friction losses, this will translate to all kinetic energy at the bottom. kinetic energy = 0.5 * mass * velocity squared
example:
mass of sled + rider = 100 kg
g = 9.82 ((m/s)/s) acceleration due to gravity
vertical distance = 20 metres
so:
potential energy at slope top = 100 * 9.82 * 20 = 19 640 joules
so:
kinetic energy at bottom = 19 640 joules
so :
19 640 = 0.5 * 100 * velocity ^2
so:
velocity = square root (19 640 / (0.5 * 100))
velocity = 19.82 metres / sec
How do you change meters per second to mph?
To convert meters per second to miles per hour, you can use the conversion factor 1 m/s = 2.23694 mph. Simply multiply the speed in meters per second by 2.23694 to get the equivalent speed in miles per hour.
336 kilometers per hour is approximately equal to 209 miles per hour.
-- You haven't said what the object's speed was at the beginning of the
25 minutes. We'll assume that it started from rest at the beginning of
this whole exercise.
-- We're also going to work exclusively with the object's speed. Since you
haven't said anything about the direction in which it moves at any moment,
we have no way to work with velocity. Fortunately, it doesn't matter.
The motion occurs in three distinct periods, which we'll consider separately:
Period I:
Zero to 90 m/s in 25 minutes.
Average speed = 45 m/s.
Distance = (average speed) x (time) = (45 meter/sec) x (60 sec/min) x (25 min) = 67,500 meters.
Period II:
(90 meters/sec) x (3,600 sec/hour) x (2 hours) = 648,000 meters
Period III:
A perfect time-reversal of Period-I ... like running the video backwards.
Same distance as Period-I = 67,500 meters.
Total distance = (67,500) + (648,000) + (67,500) = 783 kilometers.
======================================================
Period-I
S = vit + 1/2 a t2
vi = 0
Acceleration = [ (90 meter/sec) x (1/25 min) ] x (1 min/60 sec) = 0.06 meter/sec2
t = 25 minutes = 1,500 sec
1/2 a t2 = 1/2 (0.06) (1,500)2 = 67,500 m
Period-II
S = v t = (90 meters/sec) x (2 hours) x (3,600 sec/hour) = 648,000 m
Period-III
Either recognize that Period-III is exactly the same as Period-I in reverse,
or else
you can use
S = vit + 1/2 a t2
vi = 90 meters/sec
t = 25 min = 1,500 sec
Acceleration = -0.06 meter/sec2
vit + 1/2 a t2 = (90)(1,500) + 1/2(-0.06)(1,500)2 = (135,000) + (-67,500) = 67,500 m
How much is the fine for 51 mph over speedlimit in mo?
The fine for going 51 mph over the speed limit in Missouri can vary depending on the county where the violation occurred. Generally, excessive speeding fines can range from $200 to over $500, and may also result in other penalties such as license suspension or points on your driving record. It is best to contact the county's municipal court where the violation occurred for specific information.
Is 327 kilometers per hour converted into miles per hour?
16.777 mi
Algebraic Steps / Dimensional Analysis Formula 27 km*100000 cm
1 km*1 in
2.54 cm*1 mi
63360 in=16.77702219 mi
Direct Conversion Formula 27 km*1 mi
1.609344 km=16.77702219 mi
What is 38 miles into miles per hour?
To convert 38 miles into miles per hour, we would need to know the time taken to travel that distance. Miles per hour is a unit of speed, so without the time component, the conversion cannot be calculated.
