Posted by **mohd** on Sunday, April 4, 2010 at 3:06pm.

A truck engine transmits 28.0 { kW} (37.5 hp) to the driving wheels when the truck is traveling at a constant velocity of magnitude 60.0km/h( 37.3mi/h) on a level road.

1.Assume that 65% of the resisting force is due to rolling friction and the remainder is due to air resistance. If the force of rolling friction is independent of speed, and the force of air resistance is proportional to the square of the speed, what power will drive the truck at 30.00 km/h? Give your answer in kilowatts .

2.Assume that 65% of the resisting force is due to rolling friction and the remainder is due to air resistance. If the force of rolling friction is independent of speed, and the force of air resistance is proportional to the square of the speed, what power will drive the truck at 30.0 {\rm{ km/h}}? Give your answer in horsepower.

3.Assume that 65% of the resisting force is due to rolling friction and the remainder is due to air resistance. If the force of rolling friction is independent of speed, and the force of air resistance is proportional to the square of the speed, what power will drive the truck at 120.0 {\rm{ km/h}}? Give your answer in kilowatts.

4.Assume that 65% of the resisting force is due to rolling friction and the remainder is due to air resistance. If the force of rolling friction is independent of speed, and the force of air resistance is proportional to the square of the speed, what power will drive the truck at 120.0 {\rm{ km/h}}? Give your answer in horsepower.

## Answer This Question

## Related Questions

- physics - A truck is pulling a car. FT is the magnitude of the force that the ...
- Physics - A 1400 kg truck goes up a hilly road at a steady 60 km/h. The force of...
- physics - A crate rests on a flatbed truck which is initially traveling at 17.8 ...
- physics - A person riding in the back of a pickup truck traveling at 60km/h on a...
- Physics - A truck of mass 8,000 kg is traveling along a level road at an initial...
- Physics - A truck is traveling at a speed of 23.0 m/s along a level road. A ...
- physics - A person riding in the back of a pickup truck traveling at 60km/h on a...
- Gen physics - A truck is traveling at a speed of 33.1 m/s along a level road. A ...
- physics - suppose you are driving on a straight two lane road at a constant ...
- physics - A 4000 kg truck traveling at constant velocity and a braking force of ...

More Related Questions