What is meant by an acceleration of negative 2metre per second square

2 answers:

8 0

means that a body is in motion, and its velocity is measured in meters per second. And, that velocity is increasing by two meters per second, every second.

steposvetlana [31]3 years ago

3 0

........................

You might be interested in

The accepted value for the acceleration due to gravity is 9.8 m/s2. What factors do you think are responsible for the difference

kakasveta [241]

It’s hard to perfectly measure the distance something travels, as well as the exact time it takes, making the results have some variation.

3 0

3 years ago

It is correct to say that impulse is equal toA) momentum.B) the change in momentum.C) the force multiplied by the distance the f

Elena-2011 [213]

Answer:

B) the change in momentum.

Explanation:

The impulse is defined as the product between the force applied on an object (F) and the duration of the collision ( $\Delta t$ ):

$J=F \Delta t$ (1)

We can rewrite the force by using Newton's second law, as the product between mass (m) and acceleration (a):

$F=ma$

So, (1) becomes

$J=ma \Delta t$

Now we can also rewrite the acceleration as ratio between the change in velocity and change in time: $a=\frac{\Delta v}{\Delta t}$ . If we substitute into the previous equation, we find