Work calculations

Stage 1

Calculate the work done for the following:

1. A car with a braking force of 1700 N travels a distance of 580 m before coming to a stop when the brakes are applied.

2. A cyclist brakes with a braking force of 220 N and it takes her 6.5 m to come to a stop.

3. A 32 N force moves an object 48 m.

4. An object with a weight of 21 N is raised through a height of 37 m.

5. A ball thrown with a force of 160 N travels 15.9 m.

Stage 2

6. Find the distance a ball is thrown when 3096 J of work is done using a 180 N force.

7. Find the weight of an object in Newtons when 1066 J of energy are transferred to raise an object up 26 m.

8. Find the braking force when a cyclist travels 13.7 m before coming to a stop when 3288 J are transferred.

9. Find the force used to throw a ball 12.7 m when 889 J of work is done.

10. Find the distance an object is moved when 399 J are transferred using a force of 21 N

Stage 3

11. Find the energy transferred when a ball thrown with a force of 0.06 kN travels 19.5 m.

12. Find the braking force when 3700 J of work is done when a cyclist brakes and travels a distance of 1850 cm before coming to a stop.

13. Find the force when a car travels a distance of 720 m before coming to a stop when 1800000 J of energy are transferred.

14. Find the energy transferred when a 0.047 kN force moves an object 40 m.

15. Find the distance a car travels when 882000 J are transferred by a 2100 N braking force before coming to a stop.

Stage 1

1. 986000 J

2. 1430 J

3. 1536 J

4. 777 J

5. 2544 J

Stage 2

6. 17.2 m

7. 41 N

8. 240 N

9. 70 N

10. 19 m

Stage 3

11. 1170 J

12. 200 N

13. 2500 N

14. 1880 J

15. 420 m