Explica AMB DETALL la formació de l'enllaç d’una de les substàncies covalents utilitzant les estructures de Lewis.

If two objects collide and one is initially at rest, is itpossible for both to be at rest after the collision?

Kruka [31]

Answer:

Not possible

Explanation:

Suppose there's no external force, then the momentum must be conserved before and after the collision.

Since momentum is defined as the product of object mass and speed. This means that if after the collision, for both object to be at rest then the total momentum is 0.

But before the collision, only 1 is at rest, the other is not -> the total momentum is non 0 before the collision.

Therefor this is not possible with the law of momentum conservation.

7 0

2 years ago

(Score for Question 4: Click or tap here to enter text of 4 points)

astra-53 [7]

The time of motion of the ball from the vertical height is independent of the horizontal velocity.

Horizontal moving projectiles is not affected by gravity and the initial velocity is equal to the final velocity.

The time of motion of ball dropped from a vertical height is calculated as follows;

$h = v_0_yt \ + \ \frac{1}{2} gt^2\\\\$

where;

h is the vertical height
t is the time of motion
g is acceleration due to gravity
$v_0_y$ is the initial vertical velocity

From the equation above, we can conclude that time of motion of the ball from the vertical height is independent of the horizontal velocity.

If there is variation in drop time, it could be as a result of applied force when the ball is dropped. This applied force influences the initial velocity which in turn alters the drop time.

Generally, horizontal moving projectiles is not affected by gravity and the initial velocity is equal to the final velocity.

Learn more about horizontal and vertical velocity here: brainly.com/question/14354319

7 0

2 years ago

A 0.50 kg object is at rest. A 2.88 N force to the right acts on the object during a time interval of 1.48 s. a) What is the vel

Murljashka [212]

Answer:

8.5m/s

Explanation:

We are given that

Mass of object=m=0.50 kg

Initial velocity, u=0