A set of pulleys is used to lift a piano with a mass of 102 kg. The piano is lifted 3 meters in 1 minutes. How much power is use
d?
1 answer:
Answer:
50.031 watts
Step-by-step explanation:
Formula
Power = Force * distance / time
The units are critical
distance = meters
time = seconds
force = newtons = kg * m / s^2
Solution
F = m * a
a = 9.81
m = 102 kg
F = 102 * 9.81 = 1000.62 Newtons
T = minute = 60 sec/min * 1 min
T = 60 seconds
d = 3 meters
Power = 1000.62 * 3 / 60
Power = 50.031
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Answer:
I think it is b
Step-by-step explanation:
The coordinates match up, as B has 3 and A also has the coordinate 3. This means they are in the line and are isosceles
1157/500 is as simple it can be as a fraction .
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arc length = 63 * 2PI/9 radians
arc length = 14 PI
50/1000 = 0.05 times is the answer
