Question

4) A body of mass 100g comes to resy in 30sec when travelling on a surface with initial velocity 30m/s. Find frictiomal dorce​

Answer 1

U= 30m/s

V = 0

T= 30 s

A = ?

A = V-U/T

a= (0-30)/30

a = -1 m/s^2 = acceleration

Force = mass*acceleration

F = 100/1000kg * -1 m/s^2

So the frictional force is 0.1*-1 = -0.1 Newton

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