Question

The forklift exerts a 300.0 N force on the box and moves it 15.0 m forward level into the air. How much work does the forklift do?

Answer 1

I think the answer is 0.00 J, but it could be something else.

Answer 2

@petiteme ?? You were so helpful before :D

Answer 3

w=mgh

Answer 4

Awh. I'm glad I helped you :D For work... Work=mgh

Answer 5

That formula is mass*gravity*height? I thought work was F*d...?

Answer 6

Use...Work= force x distance ^_^

Answer 7

So it's 4,500 J?

Answer 8

mass times gravity is force.

Answer 9

Oh, duh! *facepalm* Thanks!

Answer 10

Yes :D

Answer 11

Great!

Answer 12

Can either of you help me with another?

Answer 13

Good job! Sure :D

Answer 14

A sailor pulls a boat horizontally alongside a dock for 10.0 m with a rope angled at 40.0°. He uses a force of 100.0 N. How much work did he do on the boat?

Answer 15

I think it's 766 J

Answer 16

Use work= force x distance x cos (theta)

Answer 17

100 N * 10 * cos 40

Answer 18

766!

Answer 19

YES :)

Answer 20

Great!

Answer 21

One more? :)

Answer 22

Sure :D Good job dear ^_^

Answer 23

Last one, I promise! And thanks :)

Answer 24

The table shows the times for runners in a 100 m dash.
A | 9.30
B | 5.70
C | 6.00
D | 7.42
If each runner has the same mass, which runner has the weakest force?

Answer 25

So the table shows time?

Answer 26

Oh my gosh! Yes, sorry. That was an important detail haha

Answer 27

in seconds

Answer 28

Never mind! I figured it out :)

Answer 29

Aw. Okies ^_^

Answer 30

Thank you very much for your help :)!!!

Answer 31

You're welcome! Good job! :D