Soham runs at a speed of 8 m/s. Vinay runs behind him after 3 seconds at a speed of 14 m/s. After how much time Vinay will catch the Soham?
A jeep has wheels of diameter 140 m. How many revolutions can the wheel complete in 40 minutes, if the jeep is travelling at a speed of 220 m/s?
A and B take part in a 500 m race. A runs at 24 km per hour. A gives B a start of 40 m and still beats him by 15 seconds. What is the speed of B?
How many seconds will a 468 m long train take to cross a man driving his motor bike at a speed of 39 km/hr in a direction of the moving train if the speed of the train is 120 km/hr?
