Question

ce of 20cm
le effort applied at
lied at the
2. The handle of a
M U
36 kgf is placed on the nut, it will crack. LICON
the handle to crack the nut.
3. A crowbar of length 100 cm is used to lift a
from the load. Calculate
a, the mechanical advantage of the crowbar b. the effort
ve load. Calculate
a, the
other end.
gth 100 cm is used to lift a load of 50 N. The fulcrum is at a di
Think and answer
Fig. 1
Fig. 2
1. In a lever of Class 1, the effort arm is shorter than th
he effort arm is shorter than the load arm.
Does a small applied force help this lever lift a large load?
2. An architect has made two designs (Fig. 1 and Fig. 2) for a flyover.
Which one will you choose and why?
3. The front end of a boat is shaped like a wedge. How does it
4. You have to join two pieces of wooden blocks. What will you prefer - nails or screws? Why?
s. Which of the following levers would be the best choice to lift a ne
E b.
Ε​

Answer 1

Answer:

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