Motion problems - practice for 14 year olds
Number of problems found: 352
- Rotary motion
Find the orbital time, rotational frequency, and angular rate of the second and minute hands on the watch. - Weighing 12481
A stone weighing 200g falls in a free fall for 3 s. Find its kinetic energy on impact. - The speed
A moving object's speed (v) is inversely proportional to the time (t) traveled and is written as? - Difference 82461
Determine the difference in angular velocities of the clock hands. [rad/s] ω of clock hands =? ω minute hands =? ω second hands =? - Rocket start
The body launched vertically up returns to the start site in 6 seconds. What height did it have? - Tractor wheels
Smaller tractor wheel has a circumference of 3 meters, bigger 4 meters. On what path executes smaller wheel six turns over bigger? - Kilometers 63354
The car will travel 154 km in 2.24 hours. How many kilometers will he travel at the same speed in 3.2 hours? - Travel 27843
The car will travel 73 km in 1 hour. How long will it take to travel 94 km? - Average speed
The car drove from city A to city B at 40 km/h and back to city A at a speed of 80 km/h. What was the average speed of the car? - Free fall
How long and at what speed does the body fall to the ground during a free fall from a height of 35 m? - The train
The train passed the observer in the 20s and passed through a 1500m tunnel in 2 minutes. Calculate the speed (km/h) and train length. - Bratislava 5046
A train will leave Bratislava for Trnava. Five minutes later, the train leaves Trnava for Bratislava at twice the speed. Which train will be closer to Trnava when they meet? - Train 2
The train slowed down from 90 km/h to 72 km/h in 5 seconds. How long does track travel? - Instantaneous 81036
Calculate the instantaneous free fall velocities at the end of the 1st, 3rd, 5th, and 7th seconds. Compile the results in a table. - Acceleration 58021
The runner reaches a speed of 30 km/h after 3 seconds from the start. Determine its acceleration. - Seconds 15853
The body landed on Earth in 9 seconds. Find from what height it fell and what its speed was on impact. - 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? - 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?
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