2. In an experiment to verify Newton's Second Law of motion, learners set
up the apparatus as shown in the diagram below.
(2)
(1)
2.1 How did we compensate for friction?
2.2 What safety precautions were considered during the experiment?
2.3 Draw a labelled free-body diagram showing all the forces acting on
(2)
the hanging object.
Answers
Explanation:
uses two experimental procedure to verify Newton's Second Law in one dimension. (1) Apply different Forces to a fixed object M (pulley). ... (2) Fixed the magnitude of force(F), change Mass(pulley). Measure the relationships between Mass(pulley) and acceleration
friction compensation
Now the force of gravity pulling down the slope is greater than the frictional force. ... At this point the runway has been friction compensated. This means that the gravitational force acting to pull the trolley forwards is opposed by the frictional force acting against the moving object.
Answer
→ 2.1 Now the force of gravity pulling down the slope is greater than the frictional force. Finally, reduce the slope so that the trolley runs down the runway at a constant rate. At this point the runway has been friction compensated. ... If these forces add to zero then the trolley moves at a constant speed.
→ 2.2 SAFETY GLASSES MUST BE WORN AT ALL TIMES. Even if you normally wear glasses, safety glasses or goggles must be worn over them. trousers or jeans should be worn to cover all of your legs. Prohibited footwear includes sandals, flip flops and ballet shoes.
→ 2.3 Answer in image