Question

An object of mass 5 kg is sliding with a constant velocity of 6m/s on a frictionless horizontal table. The force required to keep the object moving with the same velocity is... *

8N
0N
2N
10N​

Answer 1

Force and acceleration

Force is defined as the product of mass and acceleration of the body. It is represented as F. SI units of mass and acceleration are kilogram and meter-per second square respectively. Hence the SI unit of force is kilogram-meter per second square. This is also called Newton (N).

Here, we've been given that, An object of mass 5 kg is sliding with a constant velocity of 6m/s on a frictionless horizontal table.

With this information, we've been asked to find out the force required to keep the object moving with the same velocity.

Since, the velocity is constant, so the acceleration will be 0 m/s².

We can find out the force required to keep the object moving with the same velocity, by simply using second law of Newton.

Second law of Newton defined as the product of mass and acceleration is equal to the force. In mathematical term it would be like this;

$\implies F = ma$

By substituting all the available values in the formula, we get:

$\implies F = 5 \times 0 \\ \\ \implies \boxed{F = 0 \: N}$

Hence, the force required to keep the object moving with the same velocity is 0 N.

#Learn more:

A body of mass 14 kg acquires an acceleration of 30 m/s² under the action of a force. Calculate the force.

brainly.in/question/42581380

Answer 2

$\frak Given = \begin{cases} &\sf{\:\bigstar\:Mass \: =\: 5\:kg} \\\\\\\\ &\sf{\:\bigstar\:Velocity\:=\:6\:m/s} \\ \\\\\\&\sf{\bigstar\:Acceleration\:=\:0\:m/s^{2}}\end{cases}$

                               ____________

To find:-        

• The force required to keep the object moving with the same velocity is.

Solutions:-      

Here, we have an object of mass 5kg is sliding with a constant velocity of 6m/s and acceleration is 0 m/s².

So to find out the force required to keep the object moving with the same velocity we will use the second law of Newton.

• The second law of Newton is F = ma

                  _____________

Applying second law of Newton,

$\qqaud\tt{\::\implies\:F\:=\:ma}$

Where,

• Force = F
• Mass = m
• acceleration =a

$\qqaud\tt{\::\implies\:F\:=\:5 \:\times\:0}$

$\qqaud\tt{\::\implies\:F\:=\:0\:N}$

Thus, the force required to keep the object moving with the same velocity is 0 N.