SSC MTS EXAM

SSC

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A motorboat velocity is 20 km/h in still water. If the boat must travel straight to the nearest shore in a river whose current is 12 km/h, What up stream angle must the bow boat point at? (hints:you know the opposite and resultant sides of your right triangle here).
A
46 degrees upsteam
B
37 degrees upstream
C
22 degrees upstream
D
42 degrees upstream
Explanation: 

Detailed explanation-1: -When an object, say, a boat, travels at a certain velocity, and the medium through which it travels, say, a river, has its own velocity, we can find the resultant velocity of the object by adding the two velocities.

Detailed explanation-2: -In which direction should the motorboat head in order to reach a point on the opposite bank directly east from the starting point? (The boat’s speed relative to the water remains 4.50) answer needs to be in degrees north of east.

There is 1 question to complete.