7. 336 J of work was done on an object that traveled 6m, how much force was required to do that work?

56 N

Explanation:

The work done is 336 J

The distance is 6m

Therefore the force can be calculated as follows

Work done = force × distance

Force= work done / distance

= 336/6

= 56 N

Hence the force that is required is 56 N

protons in

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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