Newton's first law of motion???????????

Question

I have to do lab to prove Newton's first law of motion.
materials :
1 toy car
1toy person hwo fits in the car
flat wood board
1 piece of string
6 science text books
1 ruler.
I need to use this these materials to prove Newton's first law og motion???

what do i have to do??? i mean (Procedure)???

please help me . it's due tommorow and I don't know how to do it???

Answer 1

First law states that a moving body not subjet to a force continues moving in a straight line with constant speed. I think the only thing you need is the toy car running over the flat wood board.
It will stop finally, but it is due to the friction.
You can use the ruler to verify that the speed is practically constant for a reasonable time interval.

Answer 2

Newtons First law explains that an object in motion will continue in motion unless acted upon by an unblananced/ outside forces. For example, a car witting a wall.
Also that an object at rest will stay at rest unless acted upon by an unblananced/ outside forces.
For example, kicking a ball. The ball is at rest, but when you kick it, it is moving again.

So you put the person in the car, and then I think you set up the book/ peice of wood up as a wall, then you measure out the distance and then demonstrate this law.
So basically you will want to move the towards the wall. When you do so, the car will come to a complete stop due to this unblanaced force, but the person will be thrown out (since they are still in motion).

Test it out a few times, then do some research.

good luck!

Answer 3

apparently you have already proved the first part. The six science books have apparently stayed at rest, because it doesn't sound like you have been doing your howework.

As for the second part. Use the string to pull the toy car into the board, the person, will fly from the car as an object in motion tends to stay in motion unless acted upon by an outside force. I guess the ruler could be used to measure how far the car and person goes without the outside force and then measure how far the person goes when the car stops??

Answer 4

Okay, you aren't going to prove Newton's first law, but you could do a demo.

Put man in car. I assume that he isn't completely fixed and can flop around a bit.

Accelerate the car rapidly from rest by kicking it. Watch the man fly backwards (relative to the car) because his inertia encourages him to stay at rest.

Part II. Put man in car. Accelerate it more slowly (with books and ramp or however) so the man stays in his seat. Stop it quickly by running it into some books or with the string or however. Watch the man fly through the window or impale himself on the steering wheel because his inertia encourages him to stay in motion.

That's probably a reasonable procedure for the elementary/junior high level experiment.

Answer 5

You dont need to do anything just put these things on the board and leave them and say , these staff won't move unless there is out side force effect on them , and in this way you proved newtron's first law which is saying the moving body wont stop unless thereis out side force going to stop him and the static body won't move unless there is out side force move it or help him to move and thats all what you need to do