A girl lifts a 12 N weight 1.5 meters. How much work does she do on the weight?
To calculate the work done on an object, you need to multiply the force applied to the object by the distance over which the force is applied. The formula for work is:
Work = Force × Distance
In this case, the girl applies a force of 12 N and lifts the weight over a distance of 1.5 meters. Therefore, the work done by the girl on the weight can be calculated as:
Work = 12 N × 1.5 m
To find the answer, multiply 12 by 1.5:
Work = 18 J (Joules)
Therefore, the girl does 18 Joules of work on the weight.