A.Â
Impulse is calculated through the equation,
       I = mΔv
where I is impulse, m is mass and Δv is change is velocity. Substituting the known values,
      I = (6 kg)(23 m/s - 6 m/s)Â
      I = 102 kg m/s
Answer: 102 kg m/s
B.Â
Impulse in this item is calculated by multiplying the force by the time.
  Â
  I = Force / time = (29 kg m/s²)(7 s) = 203 kg m/s
Answer: 203 kg m/s
C.Â
To answer this item, we have to multiply the mass and the velocity to get the impulse and divide the answer by the time to get the force.
    F = m(v)/t
Substituting,
 Â
    F = (0.1 kg)(-5.69 m/s)/0.64 sÂ
     F = -0.89 N
Answer: -0.89 N