Question

The engine of a car of mass 2000kg produces a force of 15,000N. Find the acceleration of the car. PLS FAST VERY URGENT PLS FAST REALLY REALLY URGENT PLS ANSWER FAST

Answer 1

☘️ Given Question ☘️

The engine of a car of mass 2000kg produces a force of 15,000N. Find the acceleration of the car.

☘ Required Answer ☘

Given:

• Mass of the engine of the car ( m ) = 2000 kg
• Force produced ( F ) = 15,000N

To find:

• Acceleration of the car

Calculation:

We know that,

• ${\underline {\underline {\boxed {\bf {\red { F = ma }}}}}}$

Where,

• F = force
• m = mass
• a = acceleration

Substituting values to find acceleration:

${\qquad {\underline {\underline {\rm {\red { F = ma }}}}}}$

$\:$

$\rm { \qquad ➡ 15,000= 2000 \times a }$

$\:$

$\rm { \qquad ➡ 15,000= 2000a }$

$\:$

$\rm { \qquad ➡ a = \dfrac{ 15,\cancel {000}}{2\cancel{000}} }$

$\:$

$\rm { \qquad ➡ a = \dfrac{ 15}{2} }$

$\:$

$\rm\blue { \qquad ➡ a = 7.5m/{s}^{2}}$

Therefore, acceleration of the car was$\rm { 7.5m/{s}^{2}}$

_______________________________

☘ More Information ☘

• Mass is defined as the quantity of matter contained in it.
• Mass is a scalar quantity.
• SI unit of mass is Kilogram ( kg ).

____

• Force is a push or pull that tends to change the position of an object.
• Force is a vector quantity.
• SI unit of force is Newton.
• Formula: f = ma

____

• Acceleration is the rate of change in velocity with time.
• It is vector quantity.
• SI unit of acceleration is $\tt { m/{s }^{2} }$
• Formula: a = v-u/t , where v = final velocity, u = intial velocity and t is time.

_________________________________

Answer 2

Correct Question :-

The engine of a car of mass 2000kg produces a force of 15,0000N. Find the acceleration of the car

Answer :-

A = 75 m/s²

Given :-

Mass = 2000 kg

Force = 150,000 N

$\underline{\boxed{\textsf{F = {\textbf{ma}}}}} \qquad\qquad \bigg\lgroup\bold{Formula \ for \ Force} \bigg\rgroup$

Here,

Mass of the body = " m "

Acceleration = " a"

Force = " F "

Now ,

A = F / m

a = 150000/ 2000

a = 150/2

a = 75m/s²

Additional Information :-

• A push or pull acting on a body which tends to change its state of rest or of is defined as Force.

• A force has both magnitude and direction making it a vector quantity.

• A force is equal to the product of body Mass and Acceleration.

$\underline{\boxed{\textsf{F = {\textbf{ma}}}}} \qquad\qquad \bigg\lgroup\bold{Formula \ for \ Force} \bigg\rgroup$

We can even derive the relation F = ma from Newton's law of motion.

$\large{\boxed{\bold{Newton's\:Second\:Law}}}$

The rate of change of momentum of an object depends upon the direction and magnitude of applied force.

$\large{\sf{F \propto \frac{dp}{dt}}}$

$\large{\leadsto \ \sf{F \propto \frac{d(mv - mu)}{dt}}}$

$\large{\leadsto \ \sf{F = k.m \frac{d(v - u)}{dt}}}$

$\large{\leadsto \ \sf{F = k.ma}} \\ \\ \sf{[If, k = 1]}$

$\\ \huge{\leadsto \ \underline{\boxed{\sf{F = ma}}}}$

➹ What is Balanced Force?

When two forces acting on an object are equal in size but act in opposite directions, then it is defined as balanced force.

Note :-

◆ A stationary object stays still.

◆ A moving object continues to move at the same speed and in the same direction.

➹ What is unbalanced Force?

◆ When two forces acting on an object are not equal in size, we say then it is defined as unbalanced force.

Note :-

◆ Stationary object starts to move in the direction of the resultant force.

◆ A moving object changes speed and/or direction in the direction of the resultant force.

➹ More about force :-

✧･ﾟ: *✧･ﾟ:*✧･ﾟ: *✧･ﾟ:**✧･ﾟ:*

☆What is the SI unit of Force?

$\red{\bigstar}$ S. I unit of Force

$\huge\leadsto{\sf\purple{Newton\: N}}$

◆ C.G.S (centimetre gram second) unit of force is dyne.

☆ Define direction of force?

◆ The direction in Which the body is pushed or pulled is called direction of the force.

☆ What are the Basic effects of force?

$\sf\underline{\purple{\:\:\: \: \: Effects\: of\: the \: Force \:\:\:}}$

❀ A force can change the direction of a moving object.

❀ A force can change the shape and size of an

object.

❀ A force can change the speed of a moving object.

❀ A force acting on a body can change its state of motion or rest.

☆ What is Acceleration ?

Acceleration is the rate of change in velocity with time.

It is vector quantity.

✧･ﾟ: *✧･ﾟ:*✧･ﾟ: *✧･ﾟ:**✧･ﾟ:*