convert 23 in2 to the equivalent number of cm2. start with the given facts that 12 in = 1 ft and 1 in = 2.54 cm
show your work in your answer here. do not simply google the answer using a unit converter.

We are giving that 12 inches make one foot and 1 inch is equivalent to

Of the given inches in centimetre will be

Explanation:

Now the value that is given in inches square is 23, to calculate the value of inches given in the question into centimetre we have to multiply the value of inch with

Since the value is given in square hence the centimetre calculated would also be in square that is why needs to be multiplied twice.

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied