Question

4. Two cars are moving in the direction with the same
speed 30 km/hr. They are separated by a distance of 5
- km, the speed of a car moving in the opposite direc-
tion if it meets these two cars at an interval of 4 min-
Lutes will be
a) 40 km/hr b) 45 km/hr
c) 30 km/hr d) 15 km/hr​

Answer 1

Answer:

45 km/hr

Explanation:

This is a question related to relative motion, here is the answer :-

let the two cars moving in same direction be A and B and the third car be C.

let the velocity of C be 'u'.

so velocity of C with respect to B would be. u+30(as they are moving in opposite directions).

do the speed u+30 would be given by

5/(4÷60) = u+30

5×60/4= u+30

75 = u+30

hence u = 45 kmph

Hope this will help you my friend.

Answer 2

Answer:

Explanation:

45 km/hr

Explanation:

This is a question related to relative motion, here is the answer :-

let the two cars moving in same direction be A and B and the third car be C.

let the velocity of C be 'u'.

so velocity of C with respect to B would be. u+30(as they are moving in opposite directions).

do the speed u+30 would be given by

5/(4÷60) = u+30

5×60/4= u+30

75 = u+30

hence u = 45 kmph

Hope this will help you my friend❣️❣️❣️❣️❣️❣️