A constant force acting on a body of mass 3kg
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A constant force acting on a body of mass 3 kg changes its speed from 2m to 3.5m in 25seconds what is the magnitude and direction of force
Answered by admin @
Magnitude of the force is 0.18N and its direction is the same as the direction of motion of the body.
We have m = 3kg, u = 2m/s, v = 3.5m/s and t = 25s.
Using the equation v = u+at, we get a =
Substituting the given values for v, u and t, a = 0.06m/s².
Finally, substituting this value for a in F = ma, we get F = 3×0.06 = 0.18N.
Clearly, this force is in the same direction as that of the motion of the body.
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