The wheels of a car move 5 times in a second.If the diameter of a wheel is 84 cm.Find the speed of the car in km/hr.

A car is moving from rest, After 10 seconds its wheels rotate 360 times in 1 minute. If the radius of the wheel is 50cm, then find the linear distance travelled in 6 minutes.

How many times will the wheel of a car rotate in a journey of 24.2 km if the diameter of the wheel is 77 cm.

A car and a bus start from a place P at the same time and move non-stop towards a place where the distance between P and Q is 210 km. The car takes half an hour less than the bus to arrive Q. If the average speed of the car is 10 km/h more than that of the bus, find the average speed of the car and the bus.

A road roller takes 750 complete revolutions to move once over to level a road. Find the area of the road if the diameter of a road roller is 84 cm and length is 1m.

The angle of elevation of an aeroplane from a point A on the ground is 60^@ . After a flight' of 30 seconds, the angle of elevation changes to 30^@ . If the plane is flying at a constant height of 3600sqrt3 m , find the speed of the plane in km/hour.

A car is moving from rest, After 10 seconds its wheels rotate 360 times in 1 minute. If the radius of the wheel is 50cm, then find angular velocity after 30 seconds

A car is moving from rest. After 10 seconds its wheels rotate 360 times in 1 minute. If the radius of the wheel is 50cm. Then find angular velocity after 30 seconds.

A car is moving from rest, After 10 seconds its wheels rotate 360 times in 1 minute. If the radius of the wheel is 50cm, then find angular acceleration.

A car is moving form rest. After 10 seconds its wheels rotate 360 times in 1 minute. If the radius of the wheel is 50cm. Then find angular acceleration

The angle of elevation of a jet plane from a point P on the ground is 60°.After a flight of 15 second the angle of elevation changes to 30°. If the jet plane is flying at a constant height of 1500sqrt3 ,find the speed of the jet plane in km/ hr.