A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Net upward force is balanced by net downward force so net force is zero.

Net force on the image is 0 Newton.

To learn more about force refer to the link:

brainly.com/question/13191643

#SPJ1

6 0

1 year ago

Some kids are playing by rolling a skateboard across level ground beside a 0.75 m high wall. The goal is to drop from the wall v

lys-0071 [83]

Answer:

The speed of the kid and the skateboard together is 0.723 m/s

Explanation:

Let the mass of the kid be $m_{k} = 45 kg$

Let the mass of the skateboard be $m_{s} = 4,5 kg$

The initial speed of the skateboard, $v_{s} = 8 m/s$

The initial horizontal speed of the boy as he jumps on the skateboard, $v_{k} = 0 m/s$

Let the speed of the kid and the skateboard together be v

According to the principle of conservation of momentum:

$m_{k} v_{k} + m_{s} v_{s} = (m_{k} + m_{s}) v$

Substituting the appropriate values into the given equation

$(45*0) + (4.5*8) = (45 + 4.8) v$

36 = 49.8 v

v = 36/49.8

v = 0.723 m/s

7 0

4 years ago

True or False? In the quark era, it was so hot that matter and

Eva8 [605]

Answer:

False

Explanation:

Great educated guess energy and matter is different

8 0

4 years ago

A 5.22-kg object passes through the origin at time t = 0 such that its x component of velocity is 5.10 m/s and its y component o

Mamont248 [21]

The magnitude of the object's velocity is

√ (5.1² + 2.82²) = √ (33.9624) = 5.828 m/s .

Kinetic energy = (1/2) (M) (speed²)

= (1/2) (5.22 kg) (5.828 m/s)²

= (2.61 kg) (33.9624 m²/s²)

= 88.64 kg-m²/s²

= 88.64 Joules

4 0

3 years ago