Answer:
Time period = 2.5 sec
Frequency = 0.4 Hz
Amplitude = 0.26 m
Maximum speed = 0.65
Explanation:
No. of oscillations = 14
Time = 35 sec
(a). Time period of oscillation
T = 2.5 sec
This is the time period.
(b). Frequency
f = 0.4 Hz
This is the frequency.
(c). Oscillation from one side to another side is 65 - 13 = 52 cm = 0.52 m
Hence amplitude
A = 0.26 m
This is the amplitude.
(d). The maximum speed
2 × 3.14 × 0.4 × 0.26
0.65
Lose its magnetic properties
Make observations
Form a hypothesis
Research
Do a test/experiment
Form data
Analyze data
Form a conclusion
Answer:
The velocity of the skateboard is 0.774 m/s.
Explanation:
Given that,
The spring constant of the spring, k = 3086 N/m
The spring is stretched 18 cm or 0.18 m
Mass of the student, m = 100 kg
Potential energy of the spring,
To find,
The velocity of the car.
Solution,
It is a case of conservation of energy. The total energy of the system remains conserved. So,
v = 0.774 m/s
So, the velocity of the skateboard is 0.774 m/s.