Answer:
Force of kinetic friction, Fk = 6N
Explanation:
Given the following data;
Coefficient of kinetic friction, μ = 0.2
Normal force, Fn=30N
To find the Force of kinetic friction;
Mathematically, the force of kinetic friction is given by the formula;
Fk = μFn
Where;
- Fk represents the force of kinetic friction.
- μ represents the coefficient of friction.
- Fn represents the normal force.
Substituting into the equation, we have;
Fk = 0.2*30
Fk = 6N
Therefore, the force of kinetic friction is 6N.
Mass number
The total number of protons and neutrons in the nucleus of an atom.
Friction makes the machine need more energy to function. There is a lot of energy lost to friction, so you need to add in extra to counteract the friction.
Answer:
47 kg
Explanation:
Momentum = 2209 kg * m/s
velocity = 47 m/s
Mass (m) = ?
We know that momentum is the product of mass and velocity so
Momentum = mass * velocity
2209 = mass * 47
mass = 2209 / 47
mass = 47 kg
Hope it will help :)❤
Answer:
a = 2.025 m/s²
T = 2925 N
Explanation:
F = ma
10000 - 1000 - 900 = (3000 + 1000)a
a = 8100 / 4000 = 2.025 m/s²
T - 900 = 1000(2.025)
T = 2925 N