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Yuri [45]
3 years ago
7

Kinetic friction is affected by the weight of the object. TrueFalse

Physics
2 answers:
monitta3 years ago
7 0

Answer:

The answer is True. Friction is indeed affected by weight.

Explanation:

hjlf3 years ago
6 0

Answer;

The above statement is True

Kinetic friction is affected by the weight of the object.

<h3><u>Explanation;</u></h3>
  • Kinetic friction is a force that acts between moving surfaces. An object that is in motion over a surface experiences a force in the opposite direction to the direction of movement.
  • The equation for kinetic friction is given by the formula;

            F= coefficient of friction * Normal force.

  • Normal force is the force of the table pushing back on the block and can be calculated by formula;

              F = mass* acceleration due to gravity.

  • Therefore, the weight of an object determines its kinetic friction.
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I WILL MARK YOU THE BRAINLIEST NO LINKS
alexandr402 [8]
The strength of the force of friction depends on two factors; the type of surfaces involves and the force that the surfaces are being push together
3 0
3 years ago
What is the force exerted on a charge of 2. 5 µC moving perpendicular through a magnetic field of 3. 0 × 102 T with a velocity o
stira [4]

The force acting on a moving charge is known as the magnetic force. The force acting on the charge will be 3.75 N.

<h3>What is the force exerted on the charge?</h3>

Magnetic fields only exert a force on a moving electric charge. A moving charge generates a magnetic field. With an increase in charge and magnetic field strength, this force rises.

when charges have higher velocities, the force is stronger. However, the magnetic force is always perpendicular to the velocity.

Mathematically the force exerted on the charge will be

F=qvBsinα

F= force acting on the charge

v = velocity of charge

q = charge

F=qvBsinα

F=2.5×10⁻⁶×5.0×10³×3.0×10²

F=37.5 N

Hence The force acting on the charge will be 3.75 N.

To learn more about the force acting on charge refer to ;

brainly.com/question/451411

F = q V B sinα

Where F is the force applied to a moving charge.

V = charge velocity

q stands for charge.

α = angle between V and B directions

As a result, the moving charge is subjected to a force of 3.75 Newton.

3 0
2 years ago
If you could help me out that would be fantastic.?!!!
Volgvan
It's either C. Or B.
3 0
4 years ago
Give 1 real life example of a scenario that takes advantage of the inverse relationship between force and time when impulse is c
OverLord2011 [107]

Answer:

On real life example of a scenario that takes advantage of the inverse relationship between force and time when impulse is constant is when making a serve with a lawn tennis racket

How It is an example of impulse is that when a serve is made by moving the bat slowly, the lawn tennis player uses less force and the ball is in contact with the string for longer a period

When however, the lawn tennis player moves the racket faster, with the strings of the racket highly tensioned  he uses more force and the ball also spends less time on the racket to produce the same momentum

Explanation:

The impulse of a force, ΔP is given by the following formula;

ΔP = F × Δt

Where ΔP is constant, we have;

F ∝ 1/Δt

Therefore, for the same impulse, when the force is increased, the time of contact is decreases and vice versa.

7 0
3 years ago
suppose you needed to build a raft to cross a fast-moving river. Describe the physical and chemical properties of the raft that
erastovalidia [21]
1.Density of the material building the raft must be lower than the water. 
<span>2. Material must not react with water. </span>
<span>3.Material must have high strength. </span>
<span>4.Raft must be wide in-order to avoid drawing in the river.</span>
4 0
3 years ago
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