Question

How much work does an elevator motor do to lift a 1000 kg mass?

a) 9.8 × 10³ J
b) 9.8 × 10⁴ J
c) 9.8 × 10⁵ J
d) 9.8 × 10⁶ J

Answer 1

To calculate the work done by the elevator motor, you need the force and distance. In this specific question, the distance is not given, so the correct answer cannot be determined.

Step-by-step explanation:

To calculate the work done by the elevator motor, we can use the formula:

Work = force × distance

We know that the force required to lift the mass is equal to the weight of the mass, which can be calculated using the equation:

Force = mass × gravity

Plugging in the given values:

Mass = 1000 kg

Gravity = 9.8 m/s²

Using these values, we can calculate the force:

Force = 1000 kg × 9.8 m/s² = 9800 N

The distance is not given in the question, so we cannot calculate the work done by the elevator motor. Therefore, none of the given options (a, b, c, d) are correct for this specific question.