SaraNextGen Study App [2022-23]
Last Updated On 23-10-2022 - By Sara

Two painters are working from a wooden board 5 m long suspended from the top of a building by two ropes attached to the ends of the plank. Either rope can withstand a maximum tension of 1040 N. Painter  of mass 80 kg is working at a distance of 1 m from one end. Painter  of mass 60 kg is working at a distance of m from the centre of mass of the board on the other side. Take mass of the board as 20 kg and . The range of so that both the painter can work safely is

a)

b)

c)

d)


Question ID - 100080 :-

Two painters are working from a wooden board 5 m long suspended from the top of a building by two ropes attached to the ends of the plank. Either rope can withstand a maximum tension of 1040 N. Painter  of mass 80 kg is working at a distance of 1 m from one end. Painter  of mass 60 kg is working at a distance of m from the centre of mass of the board on the other side. Take mass of the board as 20 kg and . The range of so that both the painter can work safely is

a)

b)

c)

d)

1 Answer
5876 Votes
3537

Answer Key : (c) -

(c)

For vertical equilibrium,

Take moment about

and

For safe working, and

and ,so the range is



Next Question :

A convex mirror used for rear-view on an automobile has a radius of curvature of 3.00 m. If a bus is located at 5.00 m from this mirror, find the size of the image.

(a)

0.32 m

(b)

0.23 m

(c)

0.87 m

(d)

1.15 m


View Topper Answer

We hope we have given the updated helpful answer / content for your query in an easily accessible format to help you in preparing adequately. We do offer free support materials, 10th maths guide, 10th science guide, 10th tamil guide, 10th social guide, 10th english guide, science 10th guide and also for all the classes books and guide to all the students who sign up for SaraNextGen. Apart from traditional textbook queries, we've got conjointly provided further high order level thinking issues, that are seemingly to be expected in boards and competitive exams. It includes conceptual queries, MCQs, Long and short answer type queries, etc. These Questions are designed to learn each student and academics by providing chapter-wise further issues focusing totally on testing conceptual information with applications. Here, we've got provided a number of the necessary ways in which within which the solutions of all the Questions will profit students of class 1 to 12. If you have any queries, drop a message to us and we will get back to you at the earliest.


SaraNextGen