Answer:
The question to your answer is: mass = 12 kg
Explanation:
Data
Force = 12 N
acceleration = 6 m/s²
mass = ?
Formula
Force = mass x acceleration (Newton's second law of motion)
mass = Force / acceleration
Substitution
mass = 12 N / 6 m/s²
mass = 12 kg result
The amount of force applied by individual man to balance the force at the right is 73.2 N.
<h3>Amount of force applied by individual man</h3>
The amount of force applied by individual man to balance the force at the right is calculated as follows;

Thus, the amount of force applied by individual man to balance the force at the right is 73.2 N.
Learn more about forces here: brainly.com/question/12970081
Answer: The pressure from the air and force of who or what used effort to make it move. For example you roll a ball it doesn't stop unless it runs out of the force which in this case would be energy.
Explanation:
Knowledge
Answer: 40m/s
Explanation:
Given that,
speed of car (v) = ?
Mass of car (m) = 500.0 kilogram
Kinetic energy (KE) = 400,000 joules
Recall that kinetic energy is possessed by a moving object, and it depends on the mass and speed by which the object moves
i.e Kinetic energy = 1/2mv²
400,000J = 1/2 x 500.0kg x v²
400,000J = 250.0kg x v²
v² = 400,000J / 250.0kg
v² = 1600
Find the square root of v²
v = √1600
v = 40m/s
Thus, the speed of the car is 40m/s