-- First of all, an ant sitting 17 cm from the center of a CD remains placidly at rest,
as the radius of a CD is only 6 cm.
-- His old-fashioned cousin, the country ant, sitting 17 cm from the center
of a vinyl record, travels a total distance of (34 pi) cm in each revolution.
If he travels a total of 913 cm in 42 seconds, then his speed per minute is
(913 cm / 42 sec) x (60 sec / minute) = 1,304.286 cm/minute (rounded)
His angular speed is 1,304.286/(34 pi) = 12.21 Rev Per Minute (rounded)
(Country Ant is sitting on the vinyl record that was used for the Saturday night dance
at the church that ended about an hour ago. In use, the record turned at 78 RPM.
After the dance ended and everyone went home, around 9:30, the Victrola eventually
ran out of gas, as there was no one left to crank it up, and it is now coasting to a stop.
In the next 42 seconds, he will travel somewhat less than 913 cm. He is experiencing
a definite case of αλφα ... angular deceleration ... and will wake up feeling quite unwell
in the morning.)
14
Average speed = Total Distance/Total Time = 350/3 = 116.66... km per hour.
That's a total of 9,600 seconds.
Average speed is total distance divided by total time. Hence 10 metres in 6 seconds is an average speed of (10/6) = 2.66666 m/s. Notice the units of speed - if you ever forget that speed is distance over time, just remember speed's units is something like metres per second, miles per hour etc. "per" means divided by.
To determine who travels more miles per day, we need to calculate the average daily distance traveled by each person. William travels only on Saturdays and Sundays, which means he has a total of 8 days (4 Saturdays and 4 Sundays) to travel 400 miles, averaging 50 miles per day. Jason travels every weekday, totaling 20 days in a month, and has flown 500 miles, averaging 25 miles per day. Therefore, William travels more miles per day than Jason.
Distance = Rate * Timeso,Rate(speed) = Distance/Time= 112 meters/4 seconds= 28 meters/second
The object will move a total distance of 80 meters, which is calculated by multiplying the speed (10 m/s) by the time (8 seconds).
The total distance covered is 32 meters (16 meters + 16 meters). The total time taken is 6 seconds (4 seconds + 2 seconds). Therefore, the average speed of the object is 32 meters / 6 seconds = 5.33 meters per second.
To find the average speed, divide the total distance traveled by the total time taken. If a car travels 88 meters in 11 seconds, its average speed would be 8 meters per second.
An element of total stopping distance is the reaction distance, which is the distance your vehicle travels from the moment you see a hazard until you physically apply the brakes. This, combined with the braking distance (the distance your vehicle travels once the brakes are applied until it comes to a complete stop), makes up the total stopping distance.
In general, we will find the average speed of a moving object by dividing the total distance it travels by the total time elapsed in its travel.We can find the actual speed of the object if it moves with a constant speed during all of its travel. But if the object is something like a bus or train that makes stops along the way, we discover its average speed by dividing the total distance it travels by the total time it took to travel that distance.
it helps a lot
Average speed = (distance covered) divided by (time to cover the distance) = 30/5 = 6 meters per second.Equivalent to 21.6 km per hour.
One element of total stopping distance is the perception-reaction distance, which is the distance a vehicle travels from the moment a driver perceives a hazard until they physically react by applying the brakes.
Distance covered in nth second means the distance covered in that particular second . It cannot be more than the distance covered in n seconds which means the distance covered in a total time of n seconds.
Total distance travelled = 20m + 15m = 35m Total displacement travelled=20m - 15m =5m
The element of total stopping distance is called reaction distance. It is the distance a vehicle travels from the moment a driver perceives a hazard until the moment they physically react by applying the brakes.