Physical quantities - math word problems - page 172 of 298
Number of problems found: 5952
- Cyclist resistance work
A cyclist rides along a horizontal path at a constant speed, overcoming a total resistance force of 20 N. What work does he do on a 5 km track? - Point motion speed
A mass point traveled a distance of 600 m in 2 minutes in uniform motion. How fast was it moving? - Pump diesel liters
Three identical pumps fill 50,400 liters of diesel into the tank in 7 hours. How much more (less) diesel will they pump if we add two more pumps, and they will all work for 4 hours? - Factory plan measurements
On the plan, the rectangular factory hall has dimensions of 30 cm and 16 cm at a scale of 1:500. Calculate the actual measurements. - Children room plan
An architect has two plans for the same apartment at different scales. On the first plan, at a scale of 1:20, the length of the children's room is 20 cm. What is the children's room size on the second plan, on a scale of 1:50? - Treasure map
On a treasure map, actual distances are directly proportional to scaled distances. If 15 miles is represented by 3 centimetres on the map, does 9 centimetres represent 135 miles? - The oscillation
The oscillation of a mechanical oscillator can be used to measure weight. A body of the unknown weight is suspended on a spring with a stiffness of 20 N times m. The resulting oscillator oscillates with a frequency of 1.6 Hz. Find the weight of the body. - Radio signal oscillations
The time signal in the radio consists of four sound marks with a frequency of 1,000 Hz, of which the first three have a duration of 100 ms and the fourth 500 ms. How many oscillations will occur at each mark? - Cycling trial
The racer in the cycling time trial rode at a speed of 12 meters per second. How many km has he covered in 3/4 hours? - Suitcase weight
What was the suitcase's weight if I lifted it to a height of 150 cm and did the work 0.5 kJ? - Sand
How much can m³ of sand be loaded on a car with a load capacity of 5 t? The sand density is 1600 kg/m³. - Radar signal distance
The electromagnetic signal sent by the radar bounced off the plane and returned in 60 microseconds. How far is the plane? - Motorcyclist distance calculation
The motorcyclist travels at a speed of 48 km/h. Will he drive at this speed in 400 minutes? Km - Body fall calculation
The body landed on Earth in 9 seconds. Find from what height it fell and what its speed was on impact. - Cyclist speed calculation
The cyclist completes the 3600 m long route in 12 minutes. Calculate its speed in km/h. - Hydraulic system force
The hydraulic system has: S1 = 0.02 m² S2 = 2 m² F1 =? F2 = 40000 N What force must we exert to get a force of 40,000 N? - The bulb
Calculate the voltage at the bulb's terminals; if the work 18 J is done to transfer particles with an electric charge of 6 C. - Rollerblade
Martin rollerbladed 1 km per minute. What distance would he cover at the same speed in 3 3/4 hours? - Copper density
The copper roller weighs 547.4 g. To determine its volume, use the copper density, which is ρ = 8960 kg/m³. - Average speed
The plane from Prague to Warsaw flies 540 km in 1 hour and 12 minutes. Find the average speed.
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