What is the maximum speed of a violent tornado?
The distance between Delhi and Agra is 200km.A train travels the first 100km at a speed of 50km/h.How fast must the train travel the next 100km,so as average 70km/h for whole journey
A car travels at a speed of 50 km/h for 3 hours. For the next 2 hours, it travels at a speed of 100 km/h. Find its average speed.
An aero-plane pilot wishes to fly due west. A wind of 100 km/h is blowing toward the south. If the airspeed of the plane (its speed in still air) is 300 km/h, I which direction should the pilot head? What is the speed of the plane w.r.t. the ground?