Home
Class 11
PHYSICS
With what minimum acceleration can a fir...

With what minimum acceleration can a fireman slide down a rope whose breaking strength is `(2//3)` of his weight?

A

`(g)/(2)`

B

`(2)/(3)g`

C

`(3)/(2)g`

D

`(g)/(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
Net downward force in the string, ma = mg - T
But `T_("min") = (2)/(3) mg " " therefore " "ma_("min") = mg - (2)/(3) mg a_("min") = g - (2)/(3) g = (g)/(3)`
Promotional Banner

Topper's Solved these Questions

  • MECHANICAL PROPERTIES OF SOLIDS

    NCERT FINGERTIPS|Exercise Higher Order Thinking Skills|8 Videos

  • MECHANICAL PROPERTIES OF SOLIDS

    NCERT FINGERTIPS|Exercise NCERT Exemplar|8 Videos

  • MECHANICAL PROPERTIES OF SOLIDS

    NCERT FINGERTIPS|Exercise Elastic Moduli|69 Videos

  • MECHANICAL PROPERTIES OF FLUIDS

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

  • MOTION IN A PLANE

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

With what minimum acceleration can a fireman slide down a rope whose breaking strength is (2)/(5)th of his weight?

With what minimum acceleration can monkey slide down a rope whose breaking strength is two third of his weight?

At what minimum acceleration should a monkey slide a rope whose breaking strength is (2)/(3) rd of its weight?

The minimum acceleration with which a fireman can slide down a rope of breaking strength two - third of his weight is

A fireman is sliding down with the help of a rope. If the breaking strength of the rope is ( 2mg)/( 3) where m is the mass of the man, the minimum acceleration with which the fireman can slide, so that the rope does not break, is :

A sphere is accelerated upwards with the help of a cord whose braking strength is five times its weight. The maximum acceleration with which the sphere can move up without cord breaking is :-

A person wishes to slide down a rope whose breaking load is 3/5 of the weight of the person Minimum acceleration by which the person should slide down without breaking the rope is:

A monkey is decending from the branch of a tree with constant acceleration. If the breaking strength is 75% of the weight of the monkey, the minimum acceleration with which monkey can slide down without breaking the branch is

A body of mass 60 kg is holding a vertical rope . The rope can break when a mass of 75 kg is suspended from it. The maximum acceleration with which the boy can climb the rope without breaking it is : ( g = 10 m//s^(2))