A ship A is moving Westwards with a speed of 10 kmph and a ship B 100 km South of A, is moving Northwards with a speed of 10 kmph. The time after which the distance between them becomes the shortest is:
1. 0 h
2. 5 h
3. $5\sqrt{2}$h
4. $10\sqrt{2}$h

Subtopic:  Relative Motion |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
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Two particles A and B, move with constant velocities v1 and vrespectively. At the initial moment, their position vectors are r1 and r2 respectively. The condition for particles A and B for their collision will be

1. $\frac{{\mathrm{r}}_{1}-{\mathrm{r}}_{2}}{\left|{\mathrm{r}}_{1}-{\mathrm{r}}_{2}\right|}=\frac{{\mathrm{v}}_{2}-{\mathrm{v}}_{1}}{\left|{\mathrm{v}}_{2}-{\mathrm{v}}_{1}\right|}$

2. ${\mathrm{r}}_{1}·{\mathrm{v}}_{1}={\mathrm{r}}_{2}·{\mathrm{v}}_{2}$

3. ${\mathrm{r}}_{1}×{\mathrm{v}}_{1}={\mathrm{r}}_{2}×{\mathrm{v}}_{2}$

4. ${\mathrm{r}}_{1}-{\mathrm{r}}_{2}={\mathrm{v}}_{1}-{\mathrm{v}}_{2}$

Subtopic:  Relative Motion |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh