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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
There are four "fundamental forces": the strong force, the weak force, the electromagnetic forces, and gravity. Others might be discovered in the future, but until then, anything else is not a fundamental force.
How fast is the moon moving away from us in MPH?
The moon orbits Earth at a speed of 2288 miles per hour (3683 kilometers per hour)
The Earth and Moon orbit the Sun once every 365.24 days, at an average distance of 150 million km and an average speed of 107,000 km/h. The speed varies during the year by about 3 percent (faster in January, slower in July).
To find the distance he is from work, we can use the formula: distance = speed x time. If he is averaging 30 mph for 30 minutes (0.5 hours), the distance he is from work would be 15 miles (30 mph x 0.5 hours).
How long does it take to travel 500 feet at 40 mph?
To travel 500 feet at 40 mph, it would take about 6 seconds. This is calculated by converting 40 mph to feet per second (40 mph = 58.67 fps) and dividing 500 feet by the speed in feet per second.
What year did king get arrested for going 35 mph in 25 mph zone?
That event occurred in 1960. Martin Luther King Jr. was arrested in Georgia for driving 30 mph in a zone of 25 mph.
Approximately 621 statute miles per hour or about 1,005 kilometers per hour.
What would be the shape of speed time graph of a body moving with variable speed?
Distance-time graph will show a straight line with a positive slope. Speed-time graph will show a horizontal line at the uniform speed. Acceleration-time graph will show a horizontal line at a = 0.
How many cc's does it take to go 35 mph?
The number of cc's (cubic centimeters) needed to reach 35 mph depends on various factors such as the engine size, weight of the vehicle, gear ratio, and aerodynamics. Generally, a motorcycle with an engine size of around 250cc to 500cc is capable of reaching 35 mph comfortably.
Let t1 and t2 be the times for the two stages.
Then t1 = x/v1
and t2 = x/v2
Total distance = x + x = 2x
Total time = t1 + t2 = x/v1 + x/v2 = x*(1/v1 + 1/v2)
Average velocity = total distance / total time
= 2x divided by x/(1/v1 + 1/v2)
= 2(1/v1 + 1/v2) which is the Harmonic mean of v1 and v2.
The idea is that you should:
a) Calculate the change in velocity.
b) Divide this change by the time.
This gives you the average acceleration over the 20 seconds, in this case.
What speed is 2924 km in 43 hours?
To find the speed, divide the distance by the time: 2924 km / 43 hours = 68 km/h.
How do you find the time acquired by initial velocity in an acceleration -time graph?
To find the time taken to acquire a certain velocity in an acceleration-time graph, locate the point on the graph where the velocity reaches the desired value. Then, find the corresponding time on the horizontal axis at that point. This time value represents the time taken to acquire the initial velocity.
How long does it take to travel 20 miles at 30 mph?
200 feet = 0.0378787879 mile
Speed(miles/hours) * Time(hours) = Distance(miles) ------->
As you can see => miles/hours * hours = miles
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Therefore :
Distance = 0.037 miles
Speed = 50 miles/hours
Time = ?
Just substitute: 50 * Time = 0.037; ---------------> you get Time = 0.037/50 = 0.00074 hours
one hour is 60 minute: therefore : 60 * 0.00074 = 0.0444 minutes
one minute is 60 sec: 60 * 0.0444 = 2.664 sec ----> 2.664 sec
The derivative of kinetic energy with respect to time is equal to the power (rate of change of energy) of the system. This can be found using the equation ( P = \frac{dE_{\text{kin}}}{dt} = F \cdot v ), where ( F ) is the force applied and ( v ) is the velocity of the object.
How many miles does it take to pass a truck at 60 mph with oncoming traffic?
It depends on the speed of the oncoming traffic and how fast the truck is traveling. To pass a truck at 60 mph with oncoming traffic, you need enough distance to safely move into the oncoming lane, pass the truck, and then merge back into your lane. It's essential to ensure you have clear visibility and enough space to complete the pass safely.
Why do you require velocity when you have speed?
Velocity provides information about both the speed and direction of an object, while speed only describes how fast an object is moving without indicating direction. This distinction is important in physics and engineering, as it allows for a more complete understanding of an object's motion.
Which acceleration has larger magnitude?
The acceleration with the larger magnitude is the one with a greater numerical value, regardless of its direction. Acceleration is a vector quantity, meaning it has both magnitude and direction, but when comparing magnitudes, only the numerical values are considered.
Is 696 meters per minute the same as 2088 feet per minute?
No, 696 meters per minute is not the same as 2088 feet per minute. To convert meters to feet, use the conversion factor 1 meter = 3.281 feet. So, 696 meters per minute is equivalent to approximately 2283 feet per minute.
How long does it take for a car to travel 250 feet at 55 mph?
36.6 feet per second at 25 miles per hour.
How many mph is a 5.7 on the 40 yard dash?
A 5.7 second 40 yard dash is roughly equivalent to maintaining a pace of about 11 mph.
In physics what is variable acceleration and please give at least two examples of it?
Variable acceleration refers to an object's velocity changing by different amounts over time. This means that the object's speed is not changing at a constant rate. An example of variable acceleration is a car speeding up as it merges onto a highway, where the acceleration is increasing. Another example is a rocket slowing down as it enters the atmosphere due to air resistance, where the acceleration is decreasing.
