A vehicle is moving with 20m/s towards the east and another is moving 15m/s towards the west
1 answer:
Answer:
5 m/s
Explanation:
Given that,
A vehicle is moving with 20m/s towards the east and another is moving 15m/s towards the west.
It is assumed to find the resultant velocity of the vehicle. Let east side is positive and west is negative. So,
Hence, the resultant velocity of the vehicle is equal to 5 m/s.
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Answer:
The time period of the wave is 0.002 sec.
Explanation:
Given that,
Frequency = 0.5 kHz
Phase difference
Path difference = 1.5 cm
We need to calculate the time period
Using formula of time period
The frequency is the reciprocal of time period.
Where, f = frequency
Put the value into the formula
Hence, The time period of the wave is 0.002 sec.
Explanation:
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