Question

the car is moving towards east with a speed of 70 km/h. To the driver of the car, a bus appears to move towards north with a speed of 40√3 What is the actual velocity of the bus? ​

Answer 1

Explanation:

Correct option is A

50km/h,30o east of north

Vb = velocity of bus

Vc = velocity of car

V bc = 253km/hr

now from relative velocity

∣Vb∣ = (25)2+(253)2 (this all equation in root..)

= 50km/hr

for direction 

tanθ=25253=3

so ′θ′ is from east direction 

Therefore it will be at 30' east of north

Hence (A) is correct

.This help u got from Divya garg. Thankyou.

Answer 2

Answer:

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