Early one February morning you go outside to build a snow man. You make a 3.8kg snowball and lift it to a height of 1.25m, then carry it 25m on level ground with a force of 1.0N to your snowman and then lift it up the rest of the way to set as the head of a 2.5m snowman. How much work do you do on the snowball as you transport it and position it on your masterpiece?

Question

Early one February morning you go outside to build a snow man. You make a 3.8kg snowball and lift it to a height of 1.25m, then carry it 25m on level ground with a force of 1.0N to your snowman and then lift it up the rest of the way to set as the head of a 2.5m snowman. How much work do you do on the snowball as you transport it and position it on your masterpiece?

Please I need help with this question, thanks

Answer 1

(m * g * h) + (f * d) + (m * g * h)

Answer 2

Got it thank you

Answer 3

Is h hight? What about m ? Sorry I am a little confused

Answer 4

To determine the amount of work done on the snowball as you transport it and position it on your masterpiece, we need to calculate the work done in different stages. Let's break it down step by step:

1. Lifting the snowball to a height of 1.25m:
The work done is given by the formula:
Work = Force x Distance x cos(theta)
where the force is the weight of the snowball (mg) and theta is the angle between the direction of force and the displacement. In this case, since the displacement and the force are in the same direction, cos(theta) = 1.

Given:
Mass of the snowball (m) = 3.8kg
Height (Distance) = 1.25m
Acceleration due to gravity (g) = 9.8m/s^2

Weight (Force) = mass x gravity
Force = 3.8kg x 9.8m/s^2

Now, we can calculate the work done:
Work = Force x Distance
Work = (3.8kg x 9.8m/s^2) x 1.25m

2. Carrying the snowball 25m on level ground:
Since you are carrying the snowball on level ground, there is no vertical displacement involved. Hence, the work done in this step is zero.

3. Lifting the snowball to the height of the snowman's head (2.5m):
Similar to step 1, you need to calculate the work done to lift the snowball to the desired height. Following the same formula,

Work = Force x Distance
Force = mass x gravity
Force = 3.8kg x 9.8m/s^2

Now, we can calculate the work done:
Work = Force x Distance
Work = (3.8kg x 9.8m/s^2) x 2.5m

To find the total work done, you need to add up the work done in each step:

Total Work = Work in Step 1 + Work in Step 2 + Work in Step 3

Remember, the work done in Step 2 is zero, so the total work done is:

Total Work = Work in Step 1 + Work in Step 3

Finally, you can substitute the values and calculate the total work done on the snowball.