To make a base line mark to know where she started measuring the snails movement, at the end of the day she can measure from her first line to her last to see how far the snail went.
Hope this helped!

8 0

3 years ago

A rolling ball with a mass of 1.01 kg crashes into a wall. The wall exerts a force of 2.40 Newtons and stops the ball. What was

klemol [59]

Answer:

Acceleration, a = 2.38m/s²

Explanation:

Given the following data;

Mass = 1.01 kg

Force = 2.4N

To find the acceleration;

Force is given by the multiplication of mass and acceleration.

Mathematically, Force is;

$F = ma$

Where;

F represents force.

m represents the mass of an object.

a represents acceleration.

Making acceleration (a) the subject, we have;

$Acceleration, a = \frac{F}{m}$

Substituting into the equation, we have;

$Acceleration, a = \frac{2.4}{1.01}$

Acceleration, a = 2.38m/s²

Therefore, the magnitude of the acceleration of the ball at the time of the crash is 2.38 meters per seconds square.

3 0

3 years ago

As a certain object falls, its position s (in meters) above ground after t seconds is given by s(t)=20-5t^2. Whats the average v

denpristay [2]

The average velocity of the object would be :

[s (1.5) - s (1)] / 0.5

= [8.75 -15] / 0.5

= 12.5 m/s

Hope this helps

3 0

3 years ago