A ship of mass 3xx10^(6) kg initially at rest is pulled by a force 6xx10^(4)N through a distance of 4m. The speed of the ship is (Assume resistivity of water is negligible)

A ship of mass 3xx10^(6) kg initially at rest is pulled by a force 6xx

1.	A ship of mass 3xx10^(6) kg initially at rest is pulled by a force 6xx10^(4)N through a distance of 4m. The speed of the ship is (Assume resistivity of water is negligible)
Answer» 1.5 m/s 20 m/s 0.5 m/s 0.4 m/s Solution :`a = F/m = (6XX 10^4)/(3xx10^6) = 2xx 10^(-2) ms^(-2) , u=0` Now, `v^2 - u^2 + 2AS` `v^2 = 0 + 2 XX 2 xx 10^(-2) xx 4` `v^2 = 16 xx 10^(-2) =0.16` `v=0.4 ms^(-1)`