Skip to main content
A

Anonymous

Jan 01, 2025

Pulling blocks question…?

Three identical blocks, each with a mass of m = 0.400 kg, are connected by ideal strings and are being pulled along a horizontal, frictionless surface by a horizontal force F. The tension in the string between blocks B and C is given as T = 3.00 N.

What is the magnitude of the force F? Additionally, what is the tension T(AB) in the string between block A and block B?

2 Answers

A
Anonymous

Feb 05, 2025

Three identical blocks connected by ideal strings are being pulled along a horizontal frictionless surface by a horizontal force F. The magnitude of the tension in the string between blocks B and C is T= 3.00N . Assume that each block has mass m= 0.400kg.

The force, F, is causing all 3 blocks to accelerate at the same rate. The tension in the string between blocks B and C is caused by the horizontal force, F, which is pulling all 3 blocks.

The string between blocks B and C is pulling blocks B and A. The 3.00 N force is causing the mass of B + A to accelerate.

F = m * a

3.00 = 0.800 * a

Acceleration = 3.00 ÷ 0.800 = 3.75 m/s^2

This is the acceleration of all 3 blocks!

The horizontal force, F = (mass of 3 blocks) * 3.75

F = 1.2 * 3.75 = 4.5 N

T(AB) is only pulling block A.

T(AB) = 0.4 * 3.75 = 1.5 N

The tension force increase as more mass is being accelerated!

Want to answer this question?

Join our community to share your knowledge!

Related Questions

1
If this same quantity of energy were transferred to 2.5 kg of water at its boiling point, what fraction of the water would be vaporized?

"If this same quantity of energy were transferred to 2.5 kg of water at its boiling point, what fraction of the water wo...

3
A question for bike riders, How come the back wheel is always following the front one, Is that odd or what. ?

Have you ever noticed how the rear wheel of a bike seems to follow the front wheel closely? Why does this happen, and is...

3
Identify each of the following as measurements?

Please identify each of the following as measurements: Length Area Volume Mass Density Time Temperature...

6
projectile motion homework?

A rescue pilot needs to drop a survival kit while flying at an altitude of 2,000.0 meters with a forward velocity of 100...

1
Today’s CPUs run at speeds measured in kilohertz.?

Today's CPUs operate at speeds measured in gigahertz rather than kilohertz. Is this statement true or false?

2
a question regarding torque in a magnetism setting?

I have a question regarding torque in a magnetism context. I understand that the equation τ = IABsin(θ) will be relevant...

1
How do you do this work and energy problem? physics urgent help!?

A 4.5 kg box slides down a 4.4 m high frictionless hill, starting from rest. It then travels across a 2.4 m wide horizon...

3
How is friction involved in sledding and skiing?

How does friction play a role in sledding and skiing? Specifically, what are the effects of friction on speed, control,...

10
what is the speed of light (in kilometers an hour)?

What is the speed of light in kilometers per hour?

1
A radio telescope has a parabolic surface as shown below. If the telescope is 1 m deep and 12 m wide, how far is the focus from the vertex?

A radio telescope features a parabolic surface, as illustrated below. Given that the telescope is 1 meter deep and 12 me...