Help me on my science homework.?

Question

I don't want you to tell me the answer. I just want you to tell me what to do.

I got 2 packets and I have 2 question I don't know how to do.

1)What is the mass of a falling rock if it hits the ground with a force of 147 newtons?

2) How do you calculate an average speed?


If you can tell me how to do this (not tell me the answer) I would be thankful.

Answer 1

Question 2:

v = m / s

That is, it is the average distance traveled in a second.
So, you can divide the total distance traveled by the total number of seconds, and you can get the average distance traveled in one second.

Answer 2

that is wrong

an object whose weight is 147 newtons not falling at all exerts a force 147 on the ground

an object slightly lighter that falls a small distance can hit the ground with a force of 147 too

if a non accelerating truck hits you at a speed of 200 mph is it the same as a truck that accelerates 9.8 m/s^2 at a speed of 1 mph? no, because the speed plays a role in it too, both cases you end up accelerating from 0 to a certain speed given by the equation m1v1+m2v2 = m1v3+m2v4

in short that is one bad put question


also in the distance a falling body travels the equation is D = v0t + (at^2)/2 if the acceleration is constant

Answer 3

PROBLEM 1:

Force = Mass x Acceleration

You have the force (147 Newtons) and you know the acceleration of gravity (g = 9.8 m/s²)

Now can you take it from here?

PROBLEM 2:

Are you asking about the average speed of this rock? Or the formula for average speed in general?

The formula is:
Average speed = distance traveled / time taken to travel that distance

For example, if I take 4 hours to travel 240 km, my average speed is 60 km / hr.

For a falling body:

Distance fallen = ½gt²

And the time to fall that distance is t.

So the average speed would be...

Answer 4

u never told me about this!!!!
well the first question is what the first person said and the second one is distance over time a.k.a division