Question

13. A force of 20N acts on a body of mass 5kg at rest. What is the acceleration of the body? What is its
velocity after 5s if the same force acts? After 5s the force ceases to act how will the body move?
I) 4m/s2,20m/s,20m/s 2) 4m/s2,10m/s,20m/s 3) 2m/s2,20m/s,20m/s 4) 4m/s2,30m/s,20m/s​

Answer 1

Answer:

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Explanation:

• F=ma

a=F/m

a=20/5

a=4m/s

• velocity after 5s

v=u+at

v=0+4(5)=20m/s

• 20m/s

option (a) is correct

Answer 2

Answer:

f=20N

Explanation:

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