Motion + fundamentals of Physics - practice problems - page 6 of 14
Number of problems found: 270
- Instantaneous 37201
The amplitude of the linear undamped harmonic oscillator is A = 12 cm, and the frequency f = 15 Hz. What is its instantaneous deflection at time a) t1 = 0.02s, b) t2 = 0.04s, when it was zero at time t = 0 s? - (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. - Two-dimensional 36453
Two of its inhabitants stand at one point in the land of two-dimensional beings. Suddenly, they both start running at the same moment. Resident A runs north at 5m/s, and resident B runs east at 12m/s. Calculate how fast they are moving away from each othe - Constant Angular Acceleration
The particle began to move from rest along a circle with a constant angular acceleration. After five cycles (n = 5), its angular velocity reached the value ω = 12 rad/s. Calculate the magnitude of the angular acceleration ε of this motion and the time int
- Minutes 35371
The fly flies at a speed of 8km/h. How many minutes will it fly from one place to another, which is 1600m away? - Light year
A light-year is a unit of length that expresses the distance light travels in one year. What distance will it travel if the speed of light is approximately 300,000 km/s? - Up and down motion
We throw the body from a height h = 5 m above the Earth vertically upwards v0 = 10 m/s. How long before we let the second body fall freely from the same height to hit the Earth simultaneously? - Harmonic oscillator
Calculate the total energy of a body performing a harmonic oscillating motion if its mass is 200 g, the deflection amplitude is 2 cm, and the frequency is 5 Hz. Please round the result to 3 decimal places. - Bratislava 32653
The bus from Bratislava to Nitra runs for 1 hour and 30 minutes. It will cover a track of 105 km. What is its average speed?
- Three-quarters 32521
Daddy cycles the distance. 15 km in three-quarters of an hour. What distance will he travel in an hour? How long will it take for the son to cover this distance, which travels at an average speed of 15km per hour? - Electromagnetic 32291
The electromagnetic signal sent by the radar bounced off the plane and returned in 60 microseconds. How far is the plane? - Pedestrians 32231
One pedestrian walked the 16km track in 3.12 hours Two pedestrians walked the 18km track in 3.18 hours Which one had a higher average speed on its track? - Kilometers 30021
The first group of tourists left the hut at 8:00 AM at a speed of 4 km/h. The second group of tourists followed them half an hour later, at a speed of 6 km/h. How long and how many kilometers from the cottage will it catch up with the first group? - Therefore 29661
Věra wants to welcome her friend Nada, who will arrive by train at 8:22 a.m. He, therefore, leaves home 1.2 km from the station at 8:00 a.m. and travels at a speed of 3.6 km/h. Will he arrive at the station on time?
- Sound speed in Earth
Through the surface layers of the Earth, sound propagates 13 times faster than through air. The charge exploded 1.7 km from the measuring station during the geological survey. How long does it take between the vibration of the soil at the measuring point - Train delay
Due to a breakdown, the train lost 16 minutes standing on the track behind Brno. He "eliminated" this delay so that after the start, the 80 km long section went at a speed 10 km/h higher than originally planned. What speed was it, and what was it supposed - Personally 28573
At 9:00 a.m., a truck left town A at an average speed of 50 km/h to town B, 290 km from town A. In 1 hour and 20 minutes, a car drove behind him at an average speed of 75 km/h. At what time and distance from city B will the passenger truck catch? - Traveling 27833
The truck drove at an average speed of 20 km/h and left Prague toward Liberec. At the same time, a bus left with him, traveling at an average speed of 30 km/h, and it arrived in Liberec 2 hours earlier than the truck. What is the distance between Prague a - Candles
Before Christmas, Eva bought two cylindrical candles - red and green. Red was 1 cm longer than green. She lit a red candle on Christmas Day at 5:30 PM, lit a green candle at 7:00 PM, and left them on fire until it burned. At 9:30 PM, both candles were the
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