Question

2 પેન્સિલો અને 3 રબરની કિંમત ₹ 9 છે અને 4 પેન્સિલો ની
અને 6 રબરની કિંમત ₹ 18 છે, તો એક પેન્સિલ અને એક રબરની કિંમત શોધો.​

Answer 1

Answer:

magine two baseballs are being thrown at you. One is traveling at 50 mph and the other at 150 mph. Even if you somehow catch that 150 mph ball, it might knock you off your feet. It will take more effort on your part to stop the 150 mph ball than the 50 mph one. So it stands to reason that velocity is a very important aspect of momentum. However, that's not all there is to momentum.

Now imagine two balls being thrown at you at 50 mph. One is a baseball and the other is a bowling ball. You probably aren't going to want to try to stop the bowling ball. It's going to keep traveling even after it hits you. Both balls are traveling at the same velocity, so what makes the bowling ball so much harder to stop? It's because it is heavier. It has more mass. So the other important aspect of momentum is mass.

In physics, we define momentum mathematically as the multiplication of mass and velocity as seen in this equation: p = m * v

p = momentum

m = mass

v = velocity

As far as momentum's units go, we have no special symbol used just for momentum. Instead, it is simply the combination of mass's standard unit of kilograms (kg) and velocity's standard unit of meters per second (m/s). Momentum is measured in standard units of kilograms times meters per second (kg m/s).