If 3600 j of work is done in 3.0 s what is the power0.00083W1200W3600W11000W
2 answers:
Answer : Power, P = 1200 Watts.
Explanation :
It is given that,
Work done, W = 3600 J
Time taken to complete the work, t = 3 s
The power is defined as the work done per unit time. The SI unit of power is watts.
Mathematically, it can be written as :
P = 1200 Watts.
So, the correct option is (B) " 1200 W ".
Hence, this is the required solution.
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Answer:
17.69 m
Explanation:
The time it takes the brick to strike the ground is 1.90 seconds.
We can apply one of Newton's equation of linear motion to find the height of the building:
where s = distance (in this case height)
u = initial velocity = 0 m/s
t = time = 1.90 s
g = acceleration due to gravity = 9.8 m/s^2
Therefore:
s = (0 * 1.9) + (0.5 * 9.8 * 1.9 * 1.9)
s = 0 + 17.68
s = 17.69 m
The height of the building is 17.69 m.