Velocity - practice for 14 year olds - page 2 of 20
Number of problems found: 391
- Before 14221
Peter and Eve read the same book. Petra read 14 pages a day, so she read it a day before Eva, who read 12 pages a day. How many pages did the book have? - The truck
What is the mass of a ten-wheeler truck if it has reached a momentum of 567 kg.m/s while it moves at 40m/s? - Book
Alena read a book at a speed of 15 pages per day. If she read twice as fast, she should read a book four days earlier. How many pages have a book? - Speedometer
The speedometer of a car reads 66 km/h. It's accurate to within 4.1% What is the maximum possible error? - Clocks
How long will a path of the end of the clock's minute-hand long 7 cm for 330 minutes? How long will we walk at the same time hour-hand? - Magnitudes 80788
The minute hand is three times longer than the second hand. In what ratio are the magnitudes of the velocities of their endpoints? - Sooner 24191
If I read a book at a rate of 15 pages a day, I will read it three days sooner than if I read it at a rate of 10 pages a day. If I read at a rate of 6 pages daily, I'll read a book. - Deceleration
In a braking test, a vehicle that travels at 51 km/h stops in 5 s. What is its acceleration? - Timber log
The ship goes from point x to y. Downstream it takes 4 hours, and upstream 6 hours. How long does it take from a point x to y a log? - Passenger car
A passenger car covers 1 km in 2/3 minutes, and a truck in 50 seconds longer. How much slower is the speed of the truck? - Train and car
The train and the car started at a constant speed journey. When the train travels 87 km, the car travels 97 km. How many km travels the train when the car travels 87 km? - Acceleration 43691
The car reaches a steady acceleration in 24 seconds from a standstill speed of 100 km/h. What runways will he reach on departure? - Motorcycle's 4492
Find the motorcycle's acceleration, which will cover a distance of 64 meters in 8 seconds if it is at rest at the beginning. - Acceleration 82217
The car has a speed of 5 m/s and accelerates to 35 m/s in 12 seconds. Calculate the acceleration of the car at a speed of 34.5 m/s. - The cyclist
The cyclist reaches a speed of 32 km/h in 3.4 seconds. What is its acceleration in m/s²? - Pond
Workers will empty a pond with two open floodgates in 20 days. A larger floodgate will empty the whole pond in 30 days. For how long would he be emptied with a smaller floodgate? - Average
What is the average speed of the car, where half of the distance covered passed at a speed of 64 km/h and the other half at 82 km/h? - Together 81974
Two gears mesh together. The larger wheel has 56 teeth, and the smaller wheel has 20 teeth. How many times does the smaller wheel turn if the larger wheel turns 15 times? - (deceleration) 36543
The car is traveling at a speed of 54 km. H-1. The driver starts braking with an acceleration (deceleration) of 3 m. S-2. Specify the time in which to stop. - The distance 3
The distance covered by car in 1 hour is 38 1/2 km. Find the distance it will cover in a) 3 1/2 hours, b) 5 hours.
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