Physics · 2019
JEE Main · 8 April 2019, Shift 1 · Q2
Ship A is sailing towards north-east with velocity v =30 i +50 j km / hr where i points east and j, north. Ship B is at a distance of 80 km east and…
Ship A is sailing towards north-east with velocity $\displaystyle \vec{v}=30 \hat{i}+50 \hat{j} \mathrm{~km} / \mathrm{hr}$ where $\displaystyle \hat{i}$ points east and $\displaystyle \hat{j}$, north. Ship B is at a distance of $\displaystyle 80$ km east and $\displaystyle 150$ km north of Ship A and is sailing towards west at $\displaystyle 10$ km/ hr. A will be at minimum distance from $\displaystyle B$ in :
Official answer
(3)
2.$\displaystyle 6$ hrs.
More from Relative Motion
- A swimmer can swim with velocity of 12 km / h in still water. Water flowing in a river has velocity 6 km / h. The direction with respect to the…2021
- The speed of a swimmer is 4 km h^-1 in still water. If the swimmer makes his strokes normal to the flow of river of width 1 km, he reaches a point…2023
- A swimmer wants to cross a river from point A to point B. Line AB makes an angle of 30^° with the flow of river. Magnitude of velocity of the swimmer…2021
- A particle is moving along the x -axis with its coordinate with time ' t ' given by x(t)=10+8 t-3 t^2. Another particle is moving along the y -axis…2020
- A bomb is dropped by a fighter plane flying horizontally. To an observer sitting in the plane, the trajectory of the bomb is a:2021
- When a car is at rest, its driver sees rain drops falling on it vertically. When driving the car with speed v, he sees that rain drops are coming at…2020
- A river of width 200 m is flowing from west to east with a speed of 18 km/h. A boat, moving with speed of 36 km / h in still water, is made to travel…2026
- Train A is moving along two parallel rail tracks towards north with speed 72 km / h and train B is moving towards south with speed 108 km / h.…2024
JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.