Question

A ship of mass 3×10^7 kg intially at rest is pulled by a force of 5×10^4 N through a distance of 3m. assuming that the resistance due to water is negligible,the speed of the ship is
a)1.5m/s
b)60m/s
c)0.1m/s
d)5m/s​

Answer 1

Explanation:

ma=F

3×10^7 ×a= 5×10^4

a=5/3×10^-3

v^2= 2as

v=√2×5/3×10^-3×3

v= √10^-2

v=10^-1

0.1 m/s