Question

3 blocks with masses m to 2m and 3m are connected by Strings as shown in the figure after an upward force f is applied on block and the masses move upward at constant speed V what is the net force on the block of mass 2 m

Answer 1

Answer:

Refer to the attachment for your answer

Answer 2

Given that,

First mass = m

Second mass = 2m

Third mass = 3m

Constant speed = v

Force = f

The masses move upward at constant speed v.

Constant speed means,

$\dfrac{dv}{dt}=0$

We know that,

Acceleration is equal to the rate of velocity of block.

$a=\dfrac{dv}{dt}$

Here, constant speed v =0

So, $a=0$

Net acceleration is zero.

Net acceleration is zero then net force will be zero.

We need to calculate the net force on the block of mass 2 m

Using formula of force

$F=ma$

Where, F = net force

a = net acceleration

m = mass

Put the value into the formula

$F=2m\times0$

$F=0$

Hence, The net force on the block of mass 2 m is zero.

Learn more :

Topic : Constant speed

https://brainly.in/question/8265881