Question

What is the acceleration of a wagon of mass 20 kg if a horizontal force of 64 N is applied to it? (ignore friction)

Answer 1

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• m = 20kg

• a = ?

• F = m×a

• 64 = 20×a

• 64÷20= a

• a = 3.2m/sec^2

Answer 2

Answer

Given ,

• Mass (m) = 20 kg
• Force ( n ) = 64N

To find ,

• the acceleration of the wagon = ?

So ,

According to the given question ;

• We know that , F = ma

now putting the value in the formula we get ;

=> 64 = 20 (a)

=> a = 64/20

=> a = 3.2 m/s^2

The acceleration of the wagon is 3.2 metre per second square .

✔ Additional information

what is motion ?

• a body said to be in motion when its position changes continuously with respect to the stationary of the taken as a reference point .

• Example :- when the position changes of a car continuously with respect to its stationary point object like house and trees etc .. we can say that the car is in motion.

What is acceleration ?

• acceleration of a body is defined as the rate of change of its velocity with the given time .
• acceleration = V - U / T

Where ,

• v = final velocity of the body
• u = initial velocity of the body
• t = time taken
• a = acceleration of the body

what is velocity ?

• velocity of a body is the distance travelled by it per unit time in a given direction .
• Velocity = displacement / time taken
• v = s/t

What is distance ?

• distance is a scalar quantity.
• the distance travelled by a body is the actual length of the path covered by a moving body is a spective of the direction in which the body travels.

what is displacement ?

• displacement is a vector quantity.
• the shortest distance between the initial and the final position with a straight line path is known as displacement.

what is speed ?

• speed of a body gives us an idea of how slow fast the body is moving.