Question

Please help medal and fan?








How much work will it take to move a 325 N rock in a straight 15 m line across your yard?

340 J
4875 J
340 N-m
4875 N-m

Answer 1

work done = force * distance moved

Answer 2

just plug in the 2 given values and multiply them

Answer 3

so its um C or B right

Answer 4

Friction cofficoefficient or something elseelse you missed to write, I think

Answer 5

Coefficients

Answer 6

yes - but i guess the frictional force is to be ignored

Answer 7

what do you get for 325 * 15 ?

Answer 8

3875

Answer 9

Then which factor doing the work,also there is no change in energy, I think itnot making sense here

Answer 10

And what are you doing there
mg x distance

Answer 11

@welshfella

Answer 12

no its not mg because the weight is given in Newtons not mass

Answer 13

no noahbred it is 4875

Answer 14

mg is always given in Newton

Answer 15

b and d are both correct because N-m is the same as Joule (J)

Answer 16

so its D

Answer 17

yea D is OK

Answer 18

Thanks @welshfella

Answer 19

BTW this question is wrong @noahbred

Answer 20

It must be that force is horizontal and = 325 N

Answer 21

Have you got a copy of the original question @noahbred?