A body "A" of weight 10 kg with its center of gravity 25 cm from the axis of rotation is to be balanced by another body ‘B’ of weight 5 kg. The radius at which the center of gravity of weight ‘B’ should be placed is?

12.5 cm
2 cm
50 cm
None of these

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 3 : 50 cm

Concept:

For the balancing of the two bodies,

the centrifugal force should be same, i.e. F₁ = F₂

⇒ (mrω²)₁ = (mrω²)₂

The speed of both bodies is same,

Therefore, (mr)₁ = (mr)₂

Calculation:

Given:

m₁ = 10 kg, r₁ = 25 cm, m₂ = 5 kg

⇒ 10 × 25 = 5 × r₂

⇒ r₂ = 50 cm

4 views Answered 2022-09-04 04:29

Related Questions

Our body needs sleep, just like it needs air and food to function at its best. During sleep, our body heals itself and restores its chemical balance. Without enough sleep, one's brain and body systems wont function normally. It can also dramatically lower ones quality of life. A study was made that by sleeping for less than 6 to 8 hours a night increases the risk of early death by 12%. There are many effects because of sleep deprivation. Which of the following, if true, would weaken the conclusion about the effects of this ?

1 Answers 4 Views

In making decisions about important questions, it is desirable to be able to distinguish between ‘strong’ arguments and ‘weak’ arguments. ‘Strong’ arguments are those, which are both important and directly related to the question. ‘Weak’ arguments are those, which are of minor importance and also may not be directly related to the question or may be related to a trivial aspect of the question. The questions below if followed by two arguments numbered I and II. You have to decide which of the arguments a ‘strong’ argument is and which a ‘weak’ argument is. Statement: Should rotation cropping system be cultivated by all farmers Arguments: I. Yes, as crop rotation helps in reduction of nematodes, weeds and diseases. II. No, as it requires more equipment for planting of different types of seeds.?

1 Answers 5 Views

A statement is given followed by two inferences I and II. You have to consider the statement to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given inferences, if any, follow from the given statement. Statement: Despite its increasing popularity, weight loss surgery may cause heart problems in some patients. Inferences: I: Weight loss surgeries are a leading cause of heart problems. II: Weight loss surgeries are not effective in decreasing weight.?

1 Answers 4 Views

In the question below is given a statement followed by two courses of action numbered I and II. You have to assume everything in the statement to be true and on the basis of the information given in the statement, decide which of the suggested course of action logically follow(s) for pursuing. Statement: Sana started using shampoo and conditioner of company X few months ago and developed the problem of hair fall. Courses of action: I. She should continue with the conditioner and try another shampoo. II. She should try another conditioner and continue with the shampoo.?

1 Answers 4 Views

The neutral axis of a beam is that axis at which bending stress is:?

1 Answers 4 Views

Which of the following conditions must be satisfied for a transistor to be in saturation 1. Its collector to base junction should be under forward bias 2. Its collector to base junction should be under reverse bias 3. Its emitter to base junction should be under reverse bias 4. Its emitter to base junction should be under forward bias Which of the above conditions are correct?

1 Answers 5 Views

Six laptops, N, Q, P, L, R and A, are placed in a row facing towards the north (not necessarily in the same order). N is placed to the immediate left of A. R is placed second to the left of Q. P is placed second to the right of A. P is placed to the immediate right of R. L is placed to the left of N. Which laptop is placed to the immediate right of L ?

1 Answers 5 Views

Among five rods, P, Q, R, S and T, the weight of T is 20 kg. The weight of S is half the weight of P. The weight of Q is one-fourth the weight of P. R's weight is twice the weight of Q. The weight of P is twice the weight of T. Which rod is the lightest among all?

1 Answers 4 Views

A team of four people, at least two girls, is to be selected from among four boys A, B, C and D and four girls E, F, G and H, fulfilling the following conditions: i. B cannot stay with H. ii. C and F should be placed together. ii, G and D cannot stay together. iv. E and G should be placed together. Which of the following can be selected as a team?

1 Answers 5 Views

Which of the following concepts are necessary to be covered before introducing the concept of 'circle of illumination" A. Orbital plane B. Axis of the Earth C. Rotation of the Earth D. Spherical shape of the Earth?

1 Answers 4 Views

এক্সাম দিয়ে মেধা যাচাই করুন

Job Preparation (1125)

Admission (754)

এসএসসি (10)

এইচএসসি (5)