2. Grade Resistance Discussion

Try these first

1. 1.

   What is rolling resistance for a vehicle weighing 20 tons with 30 kg per ton?

   Hint

   Multiply weight in tons by resistance per ton.

2. 2.

   If a slope is at 6%, how much grade resistance is required?

   Hint

   Use the formula of grade resistance.

3. 3.

   What is rolling resistance based on?

   • Machine speed
   • Vehicle weight
   • Slope percentage

   Hint

   Think about how weight affects movement.

4. 4.

   True or False: Grade assistance occurs when moving uphill.

   • True
   • False

   Hint

   Consider how gravity aids movement in different directions.

5. 5.

   Given a tractor weighing 20 tons with a rolling resistance of 20 kg per ton and ascending a 2% slope, calculate the total power required to tow a load if the tractor can provide 5000 kg of pull.

   Hint

   Break down the problem into rolling and grade resistance components.

6. 6.

   A machine must move up a 3% slope and has a rolling resistance of 15 kg per ton. How much power does it need if it weighs 30 tons?

   Hint

   Always start with calculating each form of resistance.