Question

Students of grade 8 were given a task to find the mass of the goblin using balance beam simulation as shown in the figure.

Using the method of hit and trial, students were able to balance the beam as shown below. Determine the mass of the goblin.

Answer 1

Answer:

500g

Explanation:

0.5 m × 4kg = 0.4m × x

2N/ 0.4m= 0.4m × x / 0.4 m

5N / 10 ms-2 = x

x= 0.5 kg

x= 500g