Question

Object A mass = 5kg object mass = 3kg calculate the total weight

Answer 1

Objects A and B together has mass \((5+3)kg = 8kg\).

Then you need to find weight, which is \(W = mg\)

Answer 2

what does the mg mean?

Answer 3

milligrams?

Answer 4

m is mass and g is gravity

Answer 5

*facepalm*

Answer 6

lol

Answer 7

well 8 kg is the mass

Answer 8

Total mass, this is.

Answer 9

then you just need to multiply it by gravity to find total weight

Answer 10

how do you find out the gravity?

Answer 11

Usually gravity is "constant."

You should be given what gravity is?

Answer 12

thats all i was given :/

Answer 13

Usually gravity is about 10m/s² or 9.8m/s² for more accurate

Answer 14

Just go ahead and multiply it by 10

Answer 15

80 kg then?

Answer 16

80 N or 80 kg m/s²

Answer 17

For reason, I have a feel that question is meant to ask you for total mass though :s

Answer 18

so i found this is in my text

Answer 19

On Earth, gravitational acceleration (g) is constant at 9.8 m/s2. If we insert the gravitational acceleration into Newton’s Second Law we have an expression for the weight of a mass due to gravitational acceleration:

Answer 20

so should i use 9.8 m/s^2

Answer 21

Yes, mathematically \(W = mg\)

Answer 22

or keep using 10 since its just 9.8 rounded up

Answer 23

yeah use 9.8

Answer 24

alright 78.4 m/s^2?

Answer 25

\(78.4\dfrac{kg~m}{s^2}\)

Answer 26

Or you can just say 78.4 N