An object of mass m with a certian initial speed on a horizontal surface comes to...

An object of mass m with a certian initial speed on a horizontal surface comes to rest after traveling a distance of 15m. If the coefficient of friction is .25, what is the initial speed of the object? Use g= 10m/s^2

Solutions

Expert Solution

Given Data

s=15m

=0.25

The total kinetic energy converted into frictional force

(1/2)mv^2=mgs

v^2=2gs

=2*10*0.25*15

=75

v =8.66 m/s^2

genius_generous answered 9 months ago

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