A boat sails east at 8m/s while a current flows north at 6m/s. What is the magnitude of the boat’s velocity relative to
Velocity components: vx=8m/s,vy=6m/s. As per NCERT Chapter 3, equations v=u+at, s=ut+½at², v²=u²+2as describe uniformly accelerated motion. Applying correct signs and units gives 10 m/s as the result, so option B is correct.
Ref: NCERT Class 11 Physics > Chapter 3: Motion in a Straight Line > Topic: Motion Parameters and Calculations