The velocity of 200kg object changes from 10m/s to 22m/s in 12 sec. what is the force on the accelerated object? a)100n
b)200n
c)600n
d)500n

Initial velocity (u) = 10 m/sFinal velocity (v) = 22 m/sTime (t) = 12 sMass (m) = 200 KgLet the acceleration be a.By using the equation of motion,

v = u + at, we have

22 m/s = 10 m/s + 12 s × aor, 22m/s - 10 m/s = 12 s × aor, 12 m/s = 12 s × aor, a = 1 m/s^2Let the force be F.We know, F = maTherefore, the force on the accelerated object (F)= ma= (200 × 1) N= 200 N

Answer:

b) 200 N

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