Why do we prefer to use a wrench with a long arm ?
Kindly refer to the link given below to get your answer :
https://www.meritnation.com/ask-answer/question/why-do-we-prefer-to-use-wrench-with-a-long-arm/system-of-particles-and-rotational-motion/1712520
https://www.meritnation.com/ask-answer/question/why-do-we-prefer-to-use-wrench-with-a-long-arm/system-of-particles-and-rotational-motion/1712520