You are pulling your little sister on her sled across an icy (frictionless) surface. When you exert a constant horizontal force

Question

2 years ago

6

of 120 N , the sled has an acceleration of 2.3 m/s2 . Part A If the sled has a mass of 8.0 kg , what is the mass of your little sister

1 answer:

Tpy6a [65] · Answer 1 · 2022-03-27T00:33:43+03:00

Answer:

Mass of Little Sister = 44.17 kg

Explanation:

From Newton's second law of motion, the magnitude of force applied on the sled is given by the following formula:

F = ma

where,

F = Force Applied = 120 N

a = Acceleration = 2.3 m/s²

m = Mass of Sled + Mass of Little Sister = 8 kg + Mass of Little Sister

Therefore,

120 N = (2.3 m/s²)(8 kg + Mass of Little Sister)

(120 N)/(2.3 m/s²) = 8 kg + Mass of Little Sister

Mass of Little Sister = 52.17 kg - 8 kg

<u>Mass of Little Sister = 44.17 kg</u>