A man pulls himself, and the cradle he is sitting in, by pulling down on the rope which is tied to the cradle and would over a fixed pulley. If the man weights 60 kg and the cradle weighs 25 kg then how much force must the man exert on the rope to pull himself up at an acceleration of l m/s².

Question

2021_88599_Image~ 1.jpg

Sid · Answer

the man will only go up when Tension in string overcomes the combined mass of cradle and man.

So, T-mg=ma

where T is tension in string

mg is combined weight of man and cradle

ma is net force

m=60+25=85kg, a=1m/s^2, g=10m/s^2 approx

So T=m(a+g)

find T

and so force exerted by man would be equal to T

Thank you for registering.

Register Now and Win Upto 25% Scholorship for a Full Academic Year !

Enter Your Details

Registration done!

Guest

A man pulls himself, and the cradle he is sitting in, by pulling down on the rope which is tied to the cradle and would over a fixed pulley. If the man weights 60 kg and the cradle weighs 25 kg then how much force must the man exert on the rope to pull himself up at an acceleration of l m/s 2 .

A man pulls himself, and the cradle he is sitting in, by pulling down on the rope which is tied to the cradle and would over a fixed pulley. If the man weights 60 kg and the cradle weighs 25 kg then how much force must the man exert on the rope to pull himself up at an acceleration of l m/s².

1 Answers

Think You Can Provide A Better Answer ?

Other Related Questions on General Physics

ASK QUESTION

Answer and earn gift vouchers

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Complete Self Study Package designed by Industry Leading Experts

Live 1-1 coding classes to unleash the Creator in your Child

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Register Now & Win Upto 25% Scholorship

Thank you for registering.

Register Now and Win Upto 25% Scholorship for a Full Academic Year !

Enter Your Details

Registration done!

Guest

IIT JEE Courses

One Year IIT Programme

Two Year IIT Programme

Crash Course

NEET Courses

One Year NEET Programme

Two Year NEET Programme

One to One

School Board

Live Online classes

Class 11 & 12

Class 9 & 10

Class 6, 7 & 8

Test Series

JEE test series

NEET test series

C.B.S.E test series

Complete Self Study Packages

FULL COURSE

For class 12th

For class 11th

A man pulls himself, and the cradle he is sitting in, by pulling down on the rope which is tied to the cradle and would over a fixed pulley. If the man weights 60 kg and the cradle weighs 25 kg then how much force must the man exert on the rope to pull himself up at an acceleration of l m/s 2 .

A man pulls himself, and the cradle he is sitting in, by pulling down on the rope which is tied to the cradle and would over a fixed pulley. If the man weights 60 kg and the cradle weighs 25 kg then how much force must the man exert on the rope to pull himself up at an acceleration of l m/s2.

1 Answers

Think You Can Provide A Better Answer ?

Other Related Questions on General Physics

ASK QUESTION

Answer and earn gift vouchers

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Complete Self Study Package designed by Industry Leading Experts

Live 1-1 coding classes to unleash the Creator in your Child

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Register Now & Win Upto 25% Scholorship

A man pulls himself, and the cradle he is sitting in, by pulling down on the rope which is tied to the cradle and would over a fixed pulley. If the man weights 60 kg and the cradle weighs 25 kg then how much force must the man exert on the rope to pull himself up at an acceleration of l m/s².