What is the acceleration of a wagon of mass 20kg if a horizontal force of 64 is applied to it

Here we have to calculate the acceleration of the wagon.

as per the question the mass of the wagon is given as 20 kg

the horizontal force that is applied on the body is 64 newton.

as the perfect unit of the fore is not mentioned it may be 64N or 64 dyne or 64 kgf.

as per Newton's second law of motion we know that the rate of change of momentum is the applied force.from the quantitative definition of Newton's second law we know that applied force is equal to the product of mass and acceleration.

hence

let F= 64 N,then

                                   a=3.2 m/s^2

if F=64kgf=64×9.8 N,then

                                                  =31.36 m/s^2

if F =64 dyne ,the acceleration is found to be 0.0032 cm/s^2 [ans]

1.   what is light?

light is an electromagnetic wave visible to the human eye. 

2. what is a reflection?

the rebounding of a light ray when it hits a mirror.

3. what is the incident ray?

contacts the surface of an object.

4. what is the reflected ray?

bounces off a reflective surface.

5. what is the normal ray?

perpendicular to the surface of a mirror.

6. what is the angle of incidence?

an angle formed by the incident ray and the normal.

7. what is the angle of reflection?

an angle formed by the reflected ray and the normal.

8. what is refraction?

(bending.)

9. what is a converging lens?

bring together light rays that pass through.

10. what is a diverging lens?

spreads out light passing through.

11. focal point?

the real point where the refracted rays meet when the incident rays run parallel.

i copy pasted btw from an website..