A
car is moving towards east with a speed of 25km/hr.
To the driver of the car
bus
appears to move towards
north with a speed of 253 km/h. What is the actual
velocity of the bus
a) 50 km 1h 80 east of.
b) ( 25 km/h, 30° east of north
c)50 km/hr 30 north of east
d) 25 km/n 30 north of east
Answers
Answered by
1
Explanation:
V
b
= velocity of bus
V
c
= velocity of car
V
bc
=25
3
km/hr
now from relative velocity
∣
V
b
∣ =
(25)
2
+(25
3
)
2
= 50km/hr
for direction
tanθ=
25
25
3
=
3
so
′
θ
′
is from east direction
Therefore it will be at 30' east of north
Hence (A) is correct
Similar questions