Question

Two blocks of mass 2kg and 4kg kept on a smooth horizontal surface and connected by a light rope are being pulled by 13N and 24N respectively. The tension force in the string connecting the blocks is?
A. 4N
B. 17.5N
C. 11N
D. Zero

Answer 1

Answer:

The ansewr is 0 N

Explanation:

Answer 2

Answer:

The correct option is D. Zero because the string is block.

Concept:

Physics mechanics issues involve pulley systems. Utilizing Newton's second law of motion and comprehending his third and first laws of motion are the best ways to tackle pulley problems in mechanics.

According to Newton's second law, F = ma.

where the vector sum of all forces acting on the item, denoted by F, represents the net force. The object's mass, m, is a scalar quantity, meaning it only possesses magnitude. The vector quality of Newton's second law is a result of acceleration. It will be necessary to be familiar with algebraic substitution to solve the pulley system problems in the examples.

Given:

First block weight = 2 kg

Second block weight = 4 kg

Blocks pulled by first force = 13 N

Blocks pulled by first force = 24 N

Find:

We have to find tension force in the string connecting the blocks.

Solution:

Net force along the direction.

Total force = $F_{1}+F_{2} =$ (13 + 14)N = 37N

Total mass = $m_{1}+m_{2} =$ (2 + 4)kg = 6 kg

F = ma

a = $\frac{F}{m}$ = $\frac{37}{6}$

For 2kg block,

T = 2a

T = $2 * \frac{37}{6}$

T = $\frac{74}{6}$

T = $=\frac{74}{6} - 13\\ = \frac{-4}{6}$

The string is block because the tension is negative.

Also, we can see here both blocks will have different acceleration.

Therefore, tension is 0 N.

#SPJ2