# How much work does it take to lift a #35 kg # weight #1/2 m #?

##### 2 Answers

#### Answer:

171.5 J

#### Explanation:

The amount of work required to complete an action can be represented by the expression

The amount of force required to lift an object is equal to the amount of force required to counteract gravity. Assuming the acceleration due to gravity is

Because gravity applies a force of -343N, to lift the box one must apply a force of +343N. In order to find the energy required to lift the box half a meter, we must multiply this force by half a meter.

#### Answer:

#### Explanation:

We use the work equation, which states that

where

The force here is the weight of the box.

Weight is given by

where

So here, the weight of the box is

The distance here is

So, plugging in the given values into the equation, we find that

Note that I used