a horizontal force of 50N acts on a body of mass 20KG initially at rest and displaces it by striking it along the entire 20m path. What has been the work done by said force?

1000 J

Explanation:

Work = force × distance

W = (50 N) (20 m)

W = 1000 J

answer: question1

1,000 tons

question2

3: 8

question 3

store d

step-by-step explanation:

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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