A race car driver is racing at `20^(th)` km. If his speed never exceeds 150 km/hr, what is the maximum distance he can cover in the next two hours.

A race car driver is racing at 20^(th) km. If his speed never exceeds 150km /hr , what is the maximum distance he can cover in the next two hours.

What is the average speed of the car if it covers 200 km in 5 h?

A police jeep, approaching an orthogonal intersection from the northern direction, is chasing a speeding car that has turned and moving straight east. When the jeep is 0.6 km north of the intersection and the car is 0.8 km to the east. The police deteremine with a radar that the distance between them and the cae is increasing at 20 km/hr. If the jeep is moving at 60 km/hr at the instant of measurement, what is the speed of the car?

A boat takes 1.6 hours longer to go 36kms up a river than down the river. If the speed of the water current is 4 km per hr, what is the speed of the boat in still water?

At a particular instant ship A is 100 km west of ship B, ship A is sailing at a speed of 35 km/hr and ship B is sailing north at 25 km/hr. How fast is the distance between the ships changes after 4 hours