Ten real life examples of newton's second law of motion
Answers
Newtons FIRST LAW
- If you kicked a ball in space, it would keep going forever, because there is no gravity, friction or air resistance going against it. It will only stop going in one direction if it hits something like a meteorite or reaches the gravity field of another planet.
- If you are driving in your car at a very high speed and hit something, like a brick wall or a tree, the car will come to an instant stop, but you will keep moving forward. This is why cars have airbags, to protect you from smashing into the windscreen.
- If you slide a hockey puck on ice, eventually it will stop, because of friction on the ice. It will also stop if it hits something, like a player’s stick or a goalpost.
Newtons SECOND LAW
- If you use the same force to push a truck and push a car, the car will have more acceleration than the truck, because the car has less mass.
- It is easier to push an empty shopping cart than a full one, because the full shopping cart has more mass than the empty one. This means that more force is required to push the full shopping cart.
Newtons THIRD LAW
- When you jump off a small rowing boat into water, you will push yourself forward towards the water. The same force you used to push forward will make the boat move backwards.
- When air rushes out of a balloon, the opposite reaction is that the balloon flies up.
- When you dive off of a diving board, you push down on the springboard. The board springs back and forces you into the air
- Catching a ball
- pulling a cart
Explanation:
The application of the second law of motion can be seen in identifying the amount of force needed to make an object move or to make it stop.
Kicking a ball:
When we kick a ball we exert force in a specific direction, which is the direction in which it will travel. In addition, the stronger the ball is kicked, the stronger the force we put on it and the further away it will travel.
Two people walking
Among the two people walking, if one is heavier than the other then the one weighing heavier will walk slower because the acceleration of the person weighing lighter is greater.
Pushing a truck and car
If you use the same force to push a truck and a car, the car will have more acceleration than the truck because the car has less mass.
Riding a bicycle
When riding a bicycle, the bicycle acts as mass and our leg muscles pushing on the pedals of the bicycle is the force.
Propel a yacht vs supertanker.
It takes a smaller extra force to propel a small yacht at sea than to propel a supertanker because the latter has a greater mass than the former.
Playing golf
In a golf game, the acceleration of the ball is directly proportional to the force applied to the club and inversely proportional to its mass. In the way influences the force of the air that can cause a small change in its direction.
Capture the ball by hand
Professional athletes move their hands back once they catch the ball as it provides the ball more time to lose its speed, and in turn apply less force on its part.
Push the same car full or empty.
It is easier to push an empty supermarket cart than a full one, since the full cart has more mass than the empty one, so more force is needed to push the cart full.
Two people pushing a table
Imagine two people, one with more force than the other, pushing a table, in different directions.
The person with greater strength is pushing towards the east, and the person with less force towards the north.
If we add both forces, we get a result equal to the movement and acceleration of the table. The table, therefore, will move in a northeasterly direction, although with a greater inclination towards the east, given the force exerted by the strongest perso
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