Question

?

Answer 1

i: work = force * distance

Answer 2

9900

Answer 3

good

for ii) power = work/time

Answer 4

600 j

Answer 5

units of power are Watts not joules

Answer 6

oh okay and for the previous question j ?

Answer 7

yes, i) is joules

for iii) power = work/time again, this time solve for time

Answer 8

7

Answer 9

175000000

Answer 10

where are you getting 175000000

it's 7 seconds

Answer 11

lol i copy and pasted something that wasn't mean for this

Answer 12

sorry

Answer 13

a little uncertain for iv) but it should be

power = work/time = force * distance/time (I am not sure how to account for mass or if it's necessary though)

Answer 14

I don't know :/ whatever you think best

Answer 15

I'll probably double check with silly since he/she's really the physics expert

Answer 16

oh okay

Answer 17

power = 8830*2.1/4 best guess

Answer 18

anyway for e) the person starts off on the ground (no potential or kinetic) and the ski lift does work on the person and the person gains potential energy and kinetic energy as a result, and when the person is at the top the potential energy is at its peak

Answer 19

thanksssssssssss!!