Question

Refer the attachment
And
answer
properly

3rd Question​

Answer 1

Answer:

magnitude is the force applied on an object. Therefore magnitude is equal to the force applied which is 20 N.

when we push a wall forward we fall backward means

away from the wall because of Newton's third law every action has an equal and opposite reaction.

Explanation:

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Answer 2

Explanation:

Momentum Conservation

Pi=Pf

mu1+mu2=mv1

(0.02×300)+(0.88×0) =( 0.88+0.02kg)v1

6=0.9v1

6/0.9=v1

v1=6.6m/s