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dem82 [27]
2 years ago
11

An electrical motor provides 0.50W of mechanical power. How much time will it take motor to lift a 0.1 kg mass at constant speed

form to a shelf 2.0 m above the floor?
a. 0.25s
b. 0.40s
c. 1.0s
d. 4.0s
Physics
1 answer:
DaniilM [7]2 years ago
5 0

Answer:

d. 4.0s

Explanation:

Mass = 0.1 kg

g = acceleration due to gravity = 10 m/s^2

Force = 0.1 × 10 = 1N

Distance = 2m

Time = force × distance / power

        = 1 × 2/0.5

        = 4.0 s

The right option is d. 4.0s

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