Question

A car is moving toward east with speed V changes it's direction and moves with same speed towards west. What is the velocity of car?

Answer 1

1. V
2. b
4. = velocity of bus
5. V
6. c
8. = velocity of car
9. V
10. bc
12. =25
13. 3
15. km/hr
17. now from relative velocity
18. ∣
19. V
21. b
23. ∣ =
24. (25)
25. 2
26. +(25
27. 3
29. )
30. 2
34. = 50km/hr
35. for direction
36. tanθ=
37. 25
38. 25
39. 3
43. =
44. 3
47. so
48. ′
49. θ
50. ′
51. is from east direction
52. Therefore it will be at 30' east of north

Hence (A) is correct