**(**๐**) **Mass of the car, m = 1100 kg

Let ๐น be the muscular force applied by each person.

โด Force required for moving the car at uniform speed = 2 x F = 2๐น

Total force applied by three persons = 3 ๐น

โด Force needed to produce acceleration in the car = 3F – 2F = F

Now acceleration produced in the car, a = 0.2 m/s

โด From the definition,

Force = Mass x Acceleration

F = 1100 kg ร 0.2 m/s^{2}

F = 220 N

**(**๐๐**) **Value of helping attitude towards those persons who are really in trouble is shown here.