What is newton’s second law of motion? give one example of newton’s second law of motion.

The second law says that the acceleration of an object is related to the net force applied in the object divided by the mass of the object.

This also can be writen as:

F = m*a

Where F is force, m is mass of the object and a is the acceleration of the object.

And example is, suppose that you have a chair that weights 10kg, if you push it with a force of 2N, then the acceleration of the chair can be obtained.

2N = 10kg*a

a = 2N/10kg = 0.2m/s^2

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

that would be because of both gravity and friction. so     c