Question text
11 A box with mass 4.0kg is pulled from rest along a horizontal floor by a constant force F. A constant frictional force of 1.0N acts on the box. When the box has travelled 1.0m its velocity is 1.5m/s. The kinetic energy of the box is equal to the work done on the box. What is force F? A 2.0N B 3.5N C 4.0N D 5.5N
11 A box with mass 4.0kg is pulled from rest along a horizontal floor by a constant force F.
A constant frictional force of 1.0N acts on the box.
When the box has travelled 1.0m its velocity is 1.5m/s.
The kinetic energy of the box is equal to the work done on the box.
What is force F?
A 2.0N B 3.5N C 4.0N D 5.5N
Select your answer: