Question

3. F B A Effort Load = 18 kgf Effort The diagram above shows a lever in use. Answer the following questions by choosing correct answer from the options given below: (i) State the principle of moments as applied to the lever shown in the figure. (A) Load ~ FB = Effort FA (B) Load * FA = Effort ~ FB Load FA FB (C) (D) FA FB Load Effort (ii) Calculate its mechanical advantage if AB = 2m and FA = 20 cm. (A) 5 (B) 7 (C) 9 (D) 11 (iii) Calculate the effort needed to lift the load (A) 1 kgf (B) 1.5 kgf (C) 2 kgf (D) 2.5 kgf (iv) How will the mechanical advantage of lever change if load is shifted towards the fulcrum without changing its dimensions? (A) Increase (B) Decrease (C) Remain same (D) None of these (v) If a machine acts as a force multiplier, its velocity ratio is TA (A) less than 1 (B) equal to 1 (C) more than 1 (D) none of these OP2​

Answer 1

Answer:

1(–1

2

5

) is written as ______ in p / q form.

Explanation:

inocuif