In which case it will be easiest nbsp-to lift an object using a lever-All of the above-Effort arm - load arm-Effort arm lt- load arm-Effort arm gt- load arm-

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Standard V

Science

Force Multiplier

In which case...

Question

In which case it will be easiest to lift an object using a lever?

Effort arm = load arm

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Effort arm < load arm

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Effort arm > load arm

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All of the above.

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Solution

The correct option is C
Effort arm > load arm

The lever acts as a force multiplier if the effort arm is bigger than the load arm. Hence, the small force as an input will give a large amount of force as an output. Thus, it will be easy to lift an object with the help of a force multiplier.

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Similar questions

An employee uses a wheelbarrow to displace a load of 100 kg wt. If the load arm and effort arm is 1 m and 2 m, write the following steps in sequential order to find the effort applied.

(A) Substitute the values in the above formula and get the effort applied.

(B) Note the values of load, load arm, and effort arm from the given data and convert them into an S.I. system.

According to the “law of levers”, $l o a d \times l o a d a r m = e f f o r t \times e f f o r t a r m$ .

A man uses a crowbar of length 1.5m to raise a load of 75 kgf by putting a sharp edge below the bar at a distance of 1m from his hand. The load is at the opposite end of the effort. Calculate (i) load arm (ii) effort arm (iii) mechanical advantage and (iv) the effort needed.

Calculate the effort needed when load = 800 N, load arm = 0.8 m and effort arm = 4.0 m

A worker uses a crowbar to move a boulder of weight 100 kg wt. If the length of the crowbar is 2 m and the effort arm is 0.3 m, then write the following steps in sequential order to find the effort needed to be applied.

(A) Find the load, effort arm, and length of the crowbar from the given data.

(B) Use the principle of the lever, i.e., load × load arm = effort × effort arm.

(D) Substitute the values in the above formula and find the effort required.

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In which case it will be easiest to lift an object using a lever?

The correct option is C Effort arm > load arm The lever acts as a force multiplier if the effort arm is bigger than the load arm. Hence, the small force as an input will give a large amount of force as an output. Thus, it will be easy to lift an object with the help of a force multiplier.

The correct option is C
Effort arm > load arm

The lever acts as a force multiplier if the effort arm is bigger than the load arm. Hence, the small force as an input will give a large amount of force as an output. Thus, it will be easy to lift an object with the help of a force multiplier.