Two cars `S_(1)` and `S_(2)` are moving in coplanar concentric circular tracks in the opposite sense with the periods of revolution 3 min and 24 min, respectively. At time t = 0, the cars are farthest apart. Then, the two cars will be

Two satellite S_(1) and S_(2) revolve around a planet in coplanar circular orbits in the opposite sense. The periods of revolutions are T and eta T respectively. Find the angular speed of S_(2) as observed by an astronouts in S_(1) , are observed by an astronaut in S_(1) , when they are closest to each other.

Two satellites S_(1) and S_(2) are revolving around a planet in the opposite sense in coplanar circular concentric orbits. At time t = 0, the satellites are farthest apart. The periods of revolution of S_(1) and S_(2) are 3 h and 24 h respectively. The radius of the orbit of S_(1) is 3xx10^(4) km. Then the orbital speed of S_(2) as observed from

Two cars, A and B, take the same time to go round around two concentric circular tracks of radii r_(1) and r_(2) , respectively. If r_(2)=4r_(1), the ratio of the angular speed of car A to that of car B is

A cyclist moving a car circular track of raidus 40 cm completes half a revolution in 40 s. Its average velocity is

A cyclist moving a car circular track of raidus 40 cm completes half a revolution in 40 s. Its average velocity is

Two cars A and B are going around concentric circular paths of tau_(A) and tau_(B) . If the two cars complete the circular paths in the same time then the ratio of angular speeds of A and B is