Question

5. A man uses a crowbar of length 1.5 m to raise a
load of 75 kgf by putting a sharp edge below the bar
at a distance of 1 m from his hand. (a) Draw a
diagram of the arrangement showing the fulcrum (F),
load (L) and effort (E) with their directions. (b) State
the kind of lever. (c) Calculate : (i) load arm,
(ii) effort arm, (iii) mechanical advantage, and
(iv) the effort needed.​

Answer 1

Since I don't have time to draw it I will tell it in words so it will help you create the image yourself.

(i) Load arm as 0.5m

(ii) Effort arm as 1 m

(iii) Mechanical Advantage

Effort arm/Load arm= 1/0.5m =2

(iv) we can also say

Mechanical advantage= load/effort

2 =75kgf/effort

So effort = 75/2 =37.5 kgf

MARK AS BRAINLIEST

Answer 2

ᴘʟᴇᴀsᴇ ɢɪᴠᴇ ᴍᴇ ᴀ 20 ᴛʜᴀɴᴋs ❤

ᴛʜᴀɴ ɪ ᴡɪʟʟ ɪɴʙᴏx ᴜ