- #1

LonelyElectron

- 18

- 1

Hey all! I have three questions below and was hoping someone could proof read, and offer some guidance for the last one... Any help is greatly appreciated!

Ryan needs to carry a bag of potatoes to the car. Determine how much work Ryan has to do to lift a 20 kg bag of potatoes to his shoulder, 1.7 m above the floor, and how much work he does as he carries this bag of potatoes to his car, which is parked 45 m away? Show your work.

F_g = mg

W = Fd

For a 1480 kg car that accelerates uniformly from a position of rest to a speed of 95 km/h in 6.0 s:

-calculate the car's acceleration

-determine how far the car traveled during this acceleration

-determine how much work was done by the car during this 6.0 s

-identify what power was developed during this process

F=ma

W=fd

v_f = v_i +at

d=1/2(v_i + v_f)t

P=W/t

1. Homework Statement*Question 1:*1. Homework Statement

Ryan needs to carry a bag of potatoes to the car. Determine how much work Ryan has to do to lift a 20 kg bag of potatoes to his shoulder, 1.7 m above the floor, and how much work he does as he carries this bag of potatoes to his car, which is parked 45 m away? Show your work.

## Homework Equations

F_g = mg

W = Fd

## The Attempt at a Solution

*Question 2:*## Homework Statement

For a 1480 kg car that accelerates uniformly from a position of rest to a speed of 95 km/h in 6.0 s:

-calculate the car's acceleration

-determine how far the car traveled during this acceleration

-determine how much work was done by the car during this 6.0 s

-identify what power was developed during this process

## Homework Equations

F=ma

W=fd

v_f = v_i +at

d=1/2(v_i + v_f)t

P=W/t

## The Attempt at a Solution

*Question 3:*## Homework Statement

Fill in the empty columns of the following table.

## Homework Equations

No idea. I used common sense.

## The Attempt at a Solution

**
**

**very lost as to how I can fill out the last column...**